diff --git a/dirt_monster.lua b/dirt_monster.lua
index 7f26efb..3001784 100644
--- a/dirt_monster.lua
+++ b/dirt_monster.lua
@@ -1,6 +1,8 @@
--- Translation support
+
 local S = minetest.get_translator("mobs_monster")
 
+-- custom dirt monster type
+
 local dirt_types = {
 
 	{	nodes = {"ethereal:dry_dirt"},
@@ -11,7 +13,6 @@ local dirt_types = {
 	}
 }
 
-
 -- Dirt Monster by PilzAdam
 
 mobs:register_mob("mobs_monster:dirt_monster", {
@@ -33,9 +34,7 @@ mobs:register_mob("mobs_monster:dirt_monster", {
 	},
 	blood_texture = "default_dirt.png",
 	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_dirtmonster"
-	},
+	sounds = {random = "mobs_dirtmonster"},
 	view_range = 15,
 	walk_velocity = 1,
 	run_velocity = 3,
@@ -48,16 +47,11 @@ mobs:register_mob("mobs_monster:dirt_monster", {
 	light_damage = 3,
 	fear_height = 4,
 	animation = {
-		speed_normal = 15,
-		speed_run = 15,
-		stand_start = 0,
-		stand_end = 14,
-		walk_start = 15,
-		walk_end = 38,
-		run_start = 40,
-		run_end = 63,
-		punch_start = 40,
-		punch_end = 63
+		speed_normal = 15, speed_run = 15,
+		stand_start = 0, stand_end = 14,
+		walk_start = 15, walk_end = 38,
+		run_start = 40, run_end = 63,
+		punch_start = 40, punch_end = 63
 	},
 
 	-- check surrounding nodes and spawn a specific monster
@@ -75,9 +69,7 @@ mobs:register_mob("mobs_monster:dirt_monster", {
 				self.base_texture = tmp.skins
 				self.object:set_properties({textures = tmp.skins})
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				return true
 			end
@@ -87,6 +79,7 @@ mobs:register_mob("mobs_monster:dirt_monster", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -102,8 +95,10 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:dirt_monster", S("Dirt Monster"), "default_dirt.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs:dirt_monster", "mobs_monster:dirt_monster") -- compatibility
+mobs:alias_mob("mobs:dirt_monster", "mobs_monster:dirt_monster")
diff --git a/dungeon_master.lua b/dungeon_master.lua
index b1cdbba..61ec815 100644
--- a/dungeon_master.lua
+++ b/dungeon_master.lua
@@ -1,6 +1,8 @@
--- Translation support
+
 local S = minetest.get_translator("mobs_monster")
 
+-- custom dungeon master types
+
 local master_types = {
 
 	{	nodes = {"nether:rack"},
@@ -11,7 +13,6 @@ local master_types = {
 	}
 }
 
-
 -- Dungeon Master by PilzAdam
 
 mobs:register_mob("mobs_monster:dungeon_master", {
@@ -59,16 +60,11 @@ mobs:register_mob("mobs_monster:dungeon_master", {
 	light_damage = 0,
 	fear_height = 3,
 	animation = {
-		stand_start = 0,
-		stand_end = 19,
-		walk_start = 20,
-		walk_end = 35,
-		punch_start = 36,
-		punch_end = 48,
-		shoot_start = 36,
-		shoot_end = 48,
-		speed_normal = 15,
-		speed_run = 15
+		stand_start = 0, stand_end = 19,
+		walk_start = 20, walk_end = 35,
+		punch_start = 36, punch_end = 48,
+		shoot_start = 36, shoot_end = 48,
+		speed_normal = 15, speed_run = 15
 	},
 
 	-- check surrounding nodes and spawn a specific monster
@@ -86,9 +82,7 @@ mobs:register_mob("mobs_monster:dungeon_master", {
 				self.base_texture = tmp.skins
 				self.object:set_properties({textures = tmp.skins})
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				return true
 			end
@@ -98,6 +92,7 @@ mobs:register_mob("mobs_monster:dungeon_master", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -111,14 +106,17 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
-mobs:register_egg("mobs_monster:dungeon_master", S("Dungeon Master"), "fire_basic_flame.png", 1, true)
+mobs:register_egg("mobs_monster:dungeon_master", S("Dungeon Master"),
+		"fire_basic_flame.png", 1, true)
 
+-- old mobs mod compatibility
 
-mobs:alias_mob("mobs:dungeon_master", "mobs_monster:dungeon_master") -- compatibility
+mobs:alias_mob("mobs:dungeon_master", "mobs_monster:dungeon_master")
 
+-- fireball arrow
 
--- fireball (weapon)
 mobs:register_arrow("mobs_monster:fireball", {
 	visual = "sprite",
 	visual_size = {x = 1, y = 1},
@@ -159,6 +157,7 @@ mobs:register_arrow("mobs_monster:fireball", {
 
 	-- direct hit, no fire... just plenty of pain
 	hit_player = function(self, player)
+
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 8}
@@ -166,6 +165,7 @@ mobs:register_arrow("mobs_monster:fireball", {
 	end,
 
 	hit_mob = function(self, player)
+
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 8}
diff --git a/fire_spirit.lua b/fire_spirit.lua
index b6b62ce..dcd975d 100644
--- a/fire_spirit.lua
+++ b/fire_spirit.lua
@@ -1,4 +1,6 @@
--- Translation support
+
+-- transpation and drops
+
 local S = minetest.get_translator("mobs_monster")
 
 local mob_drops = {
@@ -26,9 +28,7 @@ mobs:register_mob("mobs_monster:fire_spirit", {
 	collisionbox = {-0.1, -0.1, -0.1, 0.1, 0.1, 0.1},
 	visual_scale = {x = 0.5, y = 0.5, z = 0.5},
 	visual = "sprite",
-	textures = {
-		{"mobs_fire_spirit.png"}
-	},
+	textures = {{"mobs_fire_spirit.png"}},
 	glow = 14,
 	blood_texture = "fire_basic_flame.png",
 	immune_to = {
@@ -67,9 +67,7 @@ mobs:register_mob("mobs_monster:fire_spirit", {
 
 		self.flame_timer = (self.flame_timer or 0) + dtime
 
-		if self.flame_timer < 0.25 then
-			return
-		end
+		if self.flame_timer < 0.25 then return end
 
 		self.flame_timer = 0
 
@@ -80,6 +78,7 @@ mobs:register_mob("mobs_monster:fire_spirit", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -95,5 +94,6 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:fire_spirit", S("Fire Spirit"), "fire_basic_flame.png", 1)
diff --git a/init.lua b/init.lua
index 01dc580..c4a7d32 100644
--- a/init.lua
+++ b/init.lua
@@ -1,11 +1,10 @@
 
--- Load support for intllib.
+-- transpation and get mod path
+local S = minetest.get_translator("mobs_monster")
 local path = minetest.get_modpath(minetest.get_current_modname()) .. "/"
 
--- Translation support
-local S = minetest.get_translator("mobs_monster")
-
 -- Check for custom mob spawn file
+
 local input = io.open(path .. "spawn.lua", "r")
 
 if input then
@@ -14,8 +13,8 @@ if input then
 	input = nil
 end
 
-
 -- helper function
+
 local function ddoo(mob)
 
 	if minetest.settings:get_bool("mobs_monster." .. mob) == false then
@@ -27,6 +26,7 @@ local function ddoo(mob)
 end
 
 -- Monsters
+
 ddoo("dirt_monster") -- PilzAdam
 ddoo("dungeon_master")
 ddoo("oerkki")
@@ -39,17 +39,16 @@ ddoo("spider") -- AspireMint
 ddoo("land_guard")
 ddoo("fire_spirit")
 
+-- Load custom spawning if found
 
--- Load custom spawning
 if mobs.custom_spawn_monster then
 	dofile(path .. "spawn.lua")
 end
 
-
 -- Lucky Blocks
+
 if minetest.get_modpath("lucky_block") then
 	dofile(path .. "lucky_block.lua")
 end
 
-
 print ("[MOD] Mobs Monster loaded")
diff --git a/land_guard.lua b/land_guard.lua
index 3e9ce2c..950c52e 100644
--- a/land_guard.lua
+++ b/land_guard.lua
@@ -1,4 +1,6 @@
--- Translation support
+
+-- translation and custom land guard types
+
 local S = minetest.get_translator("mobs_monster")
 
 local guard_types = {
@@ -50,9 +52,7 @@ mobs:register_mob("mobs_monster:land_guard", {
 		{"mobs_land_guard3.png"}
 	},
 	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_dungeonmaster",
-	},
+	sounds = {random = "mobs_dungeonmaster"},
 	walk_velocity = 1.5,
 	run_velocity = 3.4,
 	jump = true,
@@ -69,14 +69,10 @@ mobs:register_mob("mobs_monster:land_guard", {
 	light_damage = 0,
 	fear_height = 8,
 	animation = {
-		stand_start = 0,
-		stand_end = 19,
-		walk_start = 20,
-		walk_end = 35,
-		punch_start = 36,
-		punch_end = 48,
-		speed_normal = 15,
-		speed_run = 20,
+		stand_start = 0, stand_end = 19,
+		walk_start = 20, walk_end = 35,
+		punch_start = 36, punch_end = 48,
+		speed_normal = 15, speed_run = 20,
 	},
 
 	-- check surrounding nodes and spawn a specific guard
@@ -95,9 +91,7 @@ mobs:register_mob("mobs_monster:land_guard", {
 				self.object:set_properties({textures = self.base_texture})
 				self.docile_by_day = tmp.docile
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				return true
 			end
@@ -107,20 +101,23 @@ mobs:register_mob("mobs_monster:land_guard", {
 	end,
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
-mobs:spawn({
-	name = "mobs_monster:land_guard",
-	nodes = {
-		"default:snow", "default:ice", "default:stone",
-		"default:dry_dirt_with_dry_grass", "ethereal:dry_dirt"
-	},
-	max_light = 7,
-	chance = 25000,
-	min_height = 0,
-	active_object_count = 1,
-})
+
+	mobs:spawn({
+		name = "mobs_monster:land_guard",
+		nodes = {
+			"default:snow", "default:ice", "default:stone",
+			"default:dry_dirt_with_dry_grass", "ethereal:dry_dirt"
+		},
+		max_light = 7,
+		chance = 25000,
+		min_height = 0,
+		active_object_count = 1,
+	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:land_guard", S("Land Guard"), "default_ice.png", 1)
diff --git a/lava_flan.lua b/lava_flan.lua
index 2ac9a78..5c006c3 100644
--- a/lava_flan.lua
+++ b/lava_flan.lua
@@ -1,4 +1,4 @@
--- Translation support
+
 local S = minetest.get_translator("mobs_monster")
 
 -- Lava Flan by Zeg9 (additional textures by JurajVajda)
@@ -79,8 +79,8 @@ mobs:register_mob("mobs_monster:lava_flan", {
 			mobs:effect(pos, 40, "fire_basic_flame.png", 2, 3, 2, 5, 10, nil)
 
 			local nods = minetest.find_nodes_in_area(
-				{x = pos.x, y = pos.y + 1, z = pos.z},
-				{x = pos.x, y = pos.y, z = pos.z}, "air")
+					{x = pos.x, y = pos.y + 1, z = pos.z},
+					{x = pos.x, y = pos.y, z = pos.z}, "air")
 
 			 -- place flame if position empty and flame exists
 			if nods and #nods > 0
@@ -96,27 +96,29 @@ mobs:register_mob("mobs_monster:lava_flan", {
 	glow = 10
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
-mobs:spawn({
-	name = "mobs_monster:lava_flan",
-	nodes = {"default:lava_source"},
-	chance = 1500,
-	active_object_count = 1,
-	max_height = 0
-})
+
+	mobs:spawn({
+		name = "mobs_monster:lava_flan",
+		nodes = {"default:lava_source"},
+		chance = 1500,
+		active_object_count = 1,
+		max_height = 0
+	})
 end
 
+-- spawn egg
 
--- add spawn egg
 mobs:register_egg("mobs_monster:lava_flan", S("Lava Flan"), "default_lava.png", 1)
 
+-- compatibility for old mobs mod
 
--- compatibility alias, only needed for servers who used the old mobs mod
 mobs:alias_mob("mobs:lava_flan", "mobs_monster:lava_flan")
 
-
 -- lava orb
+
 minetest.register_craftitem(":mobs:lava_orb", {
 	description = S("Lava orb"),
 	inventory_image = "zmobs_lava_orb.png",
@@ -131,8 +133,7 @@ minetest.register_craft({
 	burntime = 80
 })
 
-
--- Lava Pick (digs and smelts at same time)
+-- backup and replace old function
 
 local old_handle_node_drops = minetest.handle_node_drops
 
@@ -151,10 +152,7 @@ function minetest.handle_node_drops(pos, drops, digger)
 			while not stack:is_empty() do
 
 				local output, decremented_input = minetest.get_craft_result({
-					method = "cooking",
-					width = 1,
-					items = {stack}
-				})
+						method = "cooking", width = 1, items = {stack}})
 
 				if output.item:is_empty() then
 					table.insert_all(hot_drops, decremented_input.items)
@@ -187,6 +185,8 @@ function minetest.handle_node_drops(pos, drops, digger)
 	return old_handle_node_drops(pos, drops, digger)
 end
 
+-- lava pick, smelts nodes when you dig
+
 minetest.register_tool(":mobs:pick_lava", {
 	description = S("Lava Pickaxe"),
 	inventory_image = "mobs_pick_lava.png",
@@ -195,9 +195,7 @@ minetest.register_tool(":mobs:pick_lava", {
 		max_drop_level = 3,
 		groupcaps = {
 			cracky = {
-				times = {[1] = 1.80, [2] = 0.80, [3] = 0.40},
-				uses = 40,
-				maxlevel = 3
+				times = {[1] = 1.80, [2] = 0.80, [3] = 0.40}, uses = 40, maxlevel = 3
 			}
 		},
 		damage_groups = {fleshy = 6, fire = 1},
@@ -206,6 +204,8 @@ minetest.register_tool(":mobs:pick_lava", {
 	light_source = 14
 })
 
+-- recipe
+
 minetest.register_craft({
 	output = "mobs:pick_lava",
 	recipe = {
@@ -215,16 +215,16 @@ minetest.register_craft({
 	}
 })
 
--- Add [toolranks] mod support if found
+-- Add [toolranks] mod support
+
 if minetest.get_modpath("toolranks") then
 
-minetest.override_item("mobs:pick_lava", {
-	original_description = "Lava Pickaxe",
-	description = toolranks.create_description("Lava Pickaxe", 0, 1),
-	after_use = toolranks.new_afteruse})
+	minetest.override_item("mobs:pick_lava", {
+		original_description = "Lava Pickaxe",
+		description = toolranks.create_description("Lava Pickaxe", 0, 1),
+		after_use = toolranks.new_afteruse})
 end
 
-
 -- obsidian flan
 
 mobs:register_mob("mobs_monster:obsidian_flan", {
@@ -243,14 +243,10 @@ mobs:register_mob("mobs_monster:obsidian_flan", {
 	collisionbox = {-0.3, -0.3, -0.3, 0.3, 0.8, 0.3},
 	visual = "mesh",
 	mesh = "zmobs_lava_flan.x",
-	textures = {
-		{"mobs_obsidian_flan.png"}
-	},
+	textures = {{"mobs_obsidian_flan.png"}},
 	blood_texture = "default_obsidian.png",
 	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_lavaflan"
-	},
+	sounds = {random = "mobs_lavaflan"},
 	walk_velocity = 0.1,
 	run_velocity = 0.5,
 	jump = false,
@@ -265,28 +261,22 @@ mobs:register_mob("mobs_monster:obsidian_flan", {
 	fire_damage = 0,
 	light_damage = 0,
 	animation = {
-		speed_normal = 15,
-		speed_run = 15,
-		stand_start = 0,
-		stand_end = 8,
-		walk_start = 10,
-		walk_end = 18,
-		run_start = 20,
-		run_end = 28,
-		punch_start = 20,
-		punch_end = 28
+		speed_normal = 15, speed_run = 15,
+		stand_start = 0, stand_end = 8,
+		walk_start = 10, walk_end = 18,
+		run_start = 20, run_end = 28,
+		punch_start = 20, punch_end = 28
 	}
 })
 
-
--- add spawn egg
+-- spawn egg
 mobs:register_egg("mobs_monster:obsidian_flan", S("Obsidian Flan"),
 		"default_obsidian.png", 1)
 
+-- obsidian arrow and grief setting check
 
 local mobs_griefing = minetest.settings:get_bool("mobs_griefing") ~= false
 
--- mese arrow (weapon)
 mobs:register_arrow("mobs_monster:obsidian_arrow", {
 	visual = "sprite",
 	visual_size = {x = 0.5, y = 0.5},
@@ -294,6 +284,7 @@ mobs:register_arrow("mobs_monster:obsidian_arrow", {
 	velocity = 6,
 
 	hit_player = function(self, player)
+
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 8},
@@ -301,6 +292,7 @@ mobs:register_arrow("mobs_monster:obsidian_arrow", {
 	end,
 
 	hit_mob = function(self, player)
+
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 8},
@@ -317,9 +309,7 @@ mobs:register_arrow("mobs_monster:obsidian_arrow", {
 		local radius = 1
 		local def = node and minetest.registered_nodes[node.name]
 
-		if not def then
-			return
-		end
+		if not def then return end
 
 		if def and def.tiles and def.tiles[1] then
 			texture = def.tiles[1]
diff --git a/lucky_block.lua b/lucky_block.lua
index 9954b8c..ca86b2b 100644
--- a/lucky_block.lua
+++ b/lucky_block.lua
@@ -1,3 +1,6 @@
+
+-- web trap schematic
+
 local web = {name = "mobs:cobweb"}
 local web_trap = {
 	size = {x = 3, y = 3, z = 3},
@@ -20,6 +23,8 @@ lucky_block:add_schematics({
 	{"webtrap", web_trap, {x = 1, y = 0, z = 1}},
 })
 
+-- add lucky blocks
+
 lucky_block:add_blocks({
 	{"sch", "webtrap", 1, true},
 	{"spw", "mobs:dungeon_master", 1, nil, nil, 3, "Billy"},
diff --git a/mese_monster.lua b/mese_monster.lua
index 2ad1a2e..b3ab5e2 100644
--- a/mese_monster.lua
+++ b/mese_monster.lua
@@ -1,140 +1,139 @@
--- Translation support
+
+-- translation and custom mese monster types
+
 local S = minetest.get_translator("mobs_monster")
 
 local mese_monster_types = {
 
--- mese_monster_red
-{
-	y_min = -20,
-	y_max = -1000,
-	damage = 2,
-	reach = 3,
-	hp_min = 15,
-	hp_max = 25,
-	armor = 80,
-	skins = {"mobs_mese_monster_red.png"},
-	immune_to = {
-		{"default:pick_wood", 0},
-		{"default:shovel_wood", 0},
-		{"default:axe_wood", 0},
-		{"default:sword_wood", 0}
+	{ -- red
+		y_min = -20,
+		y_max = -1000,
+		damage = 2,
+		reach = 3,
+		hp_min = 15,
+		hp_max = 25,
+		armor = 80,
+		skins = {"mobs_mese_monster_red.png"},
+		immune_to = {
+			{"default:pick_wood", 0},
+			{"default:shovel_wood", 0},
+			{"default:axe_wood", 0},
+			{"default:sword_wood", 0}
+		},
+		drops = {
+			{name = "default:mese_crystal", chance = 15, min = 0, max = 1},
+			{name = "default:mese_crystal_fragment", chance = 2, min = 0, max = 1}
+		},
+		arrow_override = function(self)
+			self.velocity = 6
+			self.damage = 2
+		end
 	},
-	drops = {
-		{name = "default:mese_crystal", chance = 15, min = 0, max = 1},
-		{name = "default:mese_crystal_fragment", chance = 2, min = 0, max = 1}
-	},
-	arrow_override = function(self)
-		self.velocity = 6
-		self.damage = 2
-	end
-},
 
--- mese_monster_green
-{
-	y_min = -1001,
-	y_max = -2000,
-	damage = 3,
-	reach = 3,
-	hp_min = 20,
-	hp_max = 30,
-	armor = 75,
-	skins = {"mobs_mese_monster_green.png"},
-	immune_to = {
-		{"default:pick_wood", 0},
-		{"default:shovel_wood", 0},
-		{"default:axe_wood", 0},
-		{"default:sword_wood", 0},
-		{"default:pick_stone", 0},
-		{"default:shovel_stone", 0},
-		{"default:axe_stone", 0},
-		{"default:sword_stone", 0}
+	{ -- green
+		y_min = -1001,
+		y_max = -2000,
+		damage = 3,
+		reach = 3,
+		hp_min = 20,
+		hp_max = 30,
+		armor = 75,
+		skins = {"mobs_mese_monster_green.png"},
+		immune_to = {
+			{"default:pick_wood", 0},
+			{"default:shovel_wood", 0},
+			{"default:axe_wood", 0},
+			{"default:sword_wood", 0},
+			{"default:pick_stone", 0},
+			{"default:shovel_stone", 0},
+			{"default:axe_stone", 0},
+			{"default:sword_stone", 0}
+		},
+		drops = {
+			{name = "default:mese_crystal", chance = 12, min = 0, max = 1},
+			{name = "default:mese_crystal_fragment", chance = 1, min = 0, max = 1}
+		},
+		arrow_override = function(self)
+			self.velocity = 6
+			self.damage = 2
+		end
 	},
-	drops = {
-		{name = "default:mese_crystal", chance = 12, min = 0, max = 1},
-		{name = "default:mese_crystal_fragment", chance = 1, min = 0, max = 1}
-	},
-	arrow_override = function(self)
-		self.velocity = 6
-		self.damage = 2
-	end
-},
 
--- mese_monster_blue
-{
-	y_min = -2001,
-	y_max = -3000,
-	damage = 3,
-	reach = 4,
-	hp_min = 25,
-	hp_max = 35,
-	armor = 70,
-	skins = {"mobs_mese_monster_blue.png"},
-	immune_to = {
-		{"default:pick_wood", 0},
-		{"default:shovel_wood", 0},
-		{"default:axe_wood", 0},
-		{"default:sword_wood", 0},
-		{"default:pick_stone", 0},
-		{"default:shovel_stone", 0},
-		{"default:axe_stone", 0},
-		{"default:sword_stone", 0},
-		{"default:pick_bronze", 0},
-		{"default:shovel_bronze", 0},
-		{"default:axe_bronze", 0},
-		{"default:sword_bronze", 0}
+	{ -- blue
+		y_min = -2001,
+		y_max = -3000,
+		damage = 3,
+		reach = 4,
+		hp_min = 25,
+		hp_max = 35,
+		armor = 70,
+		skins = {"mobs_mese_monster_blue.png"},
+		immune_to = {
+			{"default:pick_wood", 0},
+			{"default:shovel_wood", 0},
+			{"default:axe_wood", 0},
+			{"default:sword_wood", 0},
+			{"default:pick_stone", 0},
+			{"default:shovel_stone", 0},
+			{"default:axe_stone", 0},
+			{"default:sword_stone", 0},
+			{"default:pick_bronze", 0},
+			{"default:shovel_bronze", 0},
+			{"default:axe_bronze", 0},
+			{"default:sword_bronze", 0}
+		},
+		drops = {
+			{name = "default:mese", chance = 15, min = 0, max = 1},
+			{name = "default:mese_crystal", chance = 9, min = 0, max = 2},
+			{name = "default:mese_crystal_fragment", chance = 1, min = 0, max = 2}
+		},
+		arrow_override = function(self)
+			self.velocity = 7
+			self.damage = 3
+		end
 	},
-	drops = {
-		{name = "default:mese", chance = 15, min = 0, max = 1},
-		{name = "default:mese_crystal", chance = 9, min = 0, max = 2},
-		{name = "default:mese_crystal_fragment", chance = 1, min = 0, max = 2}
-	},
-	arrow_override = function(self)
-		self.velocity = 7
-		self.damage = 3
-	end
-},
-
--- mese_monster_purple
-{
-	y_min = -3000,
-	y_max = -31000,
-	damage = 4,
-	reach = 5,
-	hp_min = 30,
-	hp_max = 40,
-	armor = 60,
-	skins = {"mobs_mese_monster_purple.png"},
-	immune_to = {
-		{"default:pick_wood", 0},
-		{"default:shovel_wood", 0},
-		{"default:axe_wood", 0},
-		{"default:sword_wood", 0},
-		{"default:pick_stone", 0},
-		{"default:shovel_stone", 0},
-		{"default:axe_stone", 0},
-		{"default:sword_stone", 0},
-		{"default:pick_bronze", 0},
-		{"default:shovel_bronze", 0},
-		{"default:axe_bronze", 0},
-		{"default:sword_bronze", 0},
-		{"default:pick_steel", 0},
-		{"default:shovel_steel", 0},
-		{"default:axe_steel", 0},
-		{"default:sword_steel", 0}
-	},
-	drops = {
-		{name = "default:mese", chance = 9, min = 0, max = 1},
-		{name = "default:mese_crystal", chance = 6, min = 0, max = 2},
-		{name = "default:mese_crystal_fragment", chance = 1, min = 0, max = 3}
-	},
-	arrow_override = function(self)
-		self.velocity = 8
-		self.damage = 4
-	end
-}}
 
+	{ -- purple
+		y_min = -3000,
+		y_max = -31000,
+		damage = 4,
+		reach = 5,
+		hp_min = 30,
+		hp_max = 40,
+		armor = 60,
+		skins = {"mobs_mese_monster_purple.png"},
+		immune_to = {
+			{"default:pick_wood", 0},
+			{"default:shovel_wood", 0},
+			{"default:axe_wood", 0},
+			{"default:sword_wood", 0},
+			{"default:pick_stone", 0},
+			{"default:shovel_stone", 0},
+			{"default:axe_stone", 0},
+			{"default:sword_stone", 0},
+			{"default:pick_bronze", 0},
+			{"default:shovel_bronze", 0},
+			{"default:axe_bronze", 0},
+			{"default:sword_bronze", 0},
+			{"default:pick_steel", 0},
+			{"default:shovel_steel", 0},
+			{"default:axe_steel", 0},
+			{"default:sword_steel", 0}
+		},
+		drops = {
+			{name = "default:mese", chance = 9, min = 0, max = 1},
+			{name = "default:mese_crystal", chance = 6, min = 0, max = 2},
+			{name = "default:mese_crystal_fragment", chance = 1, min = 0, max = 3}
+		},
+		arrow_override = function(self)
+			self.velocity = 8
+			self.damage = 4
+		end
+	}
+}
 
 -- Mese Monster by SirrobZeroone
+
 mobs:register_mob("mobs_monster:mese_monster", {
 	type = "monster",
 	visual_size = {x = 10, y = 10},  -- Got scale wrong in blender by factor of 10 - S01
@@ -155,9 +154,7 @@ mobs:register_mob("mobs_monster:mese_monster", {
 	collisionbox = {-0.75, -0.5, -0.75, 0.75, 2.5, 0.75},
 	visual = "mesh",
 	mesh = "mobs_mese_monster.b3d",
-	textures = {
-		{"mobs_mese_monster_purple.png"}
-	},
+	textures = {{"mobs_mese_monster_purple.png"}},
 	blood_texture = "default_mese_crystal_fragment.png",
 	makes_footstep_sound = false,
 	sounds = {
@@ -187,36 +184,21 @@ mobs:register_mob("mobs_monster:mese_monster", {
 	lava_damage = 1,
 	light_damage = 0,
 	animation = {
-		speed_normal = 18,
-		speed_run    = 18,
-		walk_start   = 10,
-		walk_end     = 41,
-		walk_speed   = 20,
-		run_start    = 10,
-		run_end      = 41,
-		run_speed    = 30,
-		stand_start  = 60,
-		stand_end    = 83,
-		shoot_start  = 100,
-		shoot_end    = 113,
-		die_start    = 125,
-		die_end      = 141,
-		death_speed  = 25,
-		die_loop     = false,
-		jump_start   = 150 ,
-		jump_end     = 168,
-		jump_loop    = false,
-		punch_start  = 175,
-		punch_end    = 189
+		speed_normal = 18, speed_run = 18,
+		walk_start = 10, walk_end = 41, walk_speed = 20,
+		run_start = 10, run_end = 41, run_speed = 30,
+		stand_start = 60, stand_end = 83,
+		shoot_start = 100, shoot_end = 113,
+		die_start = 125, die_end = 141, death_speed = 25, die_loop = false,
+		jump_start = 150 , jump_end = 168, jump_loop = false,
+		punch_start = 175, punch_end = 189
 	},
 
 	after_activate = function(self, staticdata, def, dtime)
 
 		local tex = self and self.textures and self.textures[1]
 
-		if tex == "zmobs_mese_monster.png" then
-			self.object:remove()
-		end
+		if tex == "zmobs_mese_monster.png" then self.object:remove() end
 	end,
 
 	on_spawn = function(self)
@@ -287,14 +269,15 @@ mobs:register_mob("mobs_monster:mese_monster", {
 	end
 })
 
+-- mese arrow item
 
--- mese arrow (weapon)
 minetest.register_craftitem("mobs_monster:mese_crystal_fragment_arrow", {
 	description = S("Mese Monster Arrow"),
 	inventory_image = "mobs_mese_arrow.png",
 	groups = {not_in_creative_inventory = 1}
 })
 
+-- mese arrow
 
 mobs:register_arrow("mobs_monster:mese_arrow", {
 	visual = "wielditem",
@@ -305,6 +288,7 @@ mobs:register_arrow("mobs_monster:mese_arrow", {
 	damage = 2,
 
 	hit_player = function(self, player)
+
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = self.damage}
@@ -312,6 +296,7 @@ mobs:register_arrow("mobs_monster:mese_arrow", {
 	end,
 
 	hit_mob = function(self, player)
+
 		player:punch(self.object, 1.0, {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = self.damage}
@@ -322,6 +307,7 @@ mobs:register_arrow("mobs_monster:mese_arrow", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -335,14 +321,16 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:mese_monster", S("Mese Monster"), "default_mese_block.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs:mese_monster", "mobs_monster:mese_monster") -- compatiblity
+mobs:alias_mob("mobs:mese_monster", "mobs_monster:mese_monster")
 
+-- 9x mese crystal fragments = 1x mese crystal recipe
 
--- 9x mese crystal fragments = 1x mese crystal
 local f = "default:mese_crystal_fragment"
 
 minetest.register_craft({
diff --git a/oerkki.lua b/oerkki.lua
index e8d02df..2bb4159 100644
--- a/oerkki.lua
+++ b/oerkki.lua
@@ -1,4 +1,4 @@
--- Translation support
+
 local S = minetest.get_translator("mobs_monster")
 
 -- Oerkki by PilzAdam
@@ -22,9 +22,7 @@ mobs:register_mob("mobs_monster:oerkki", {
 		{"mobs_oerkki3.png"}
 	},
 	makes_footstep_sound = false,
-	sounds = {
-		random = "mobs_oerkki"
-	},
+	sounds = {random = "mobs_oerkki"},
 	walk_velocity = 1,
 	run_velocity = 3,
 	view_range = 10,
@@ -38,16 +36,11 @@ mobs:register_mob("mobs_monster:oerkki", {
 	light_damage = 1,
 	fear_height = 4,
 	animation = {
-		stand_start = 0,
-		stand_end = 23,
-		walk_start = 24,
-		walk_end = 36,
-		run_start = 37,
-		run_end = 49,
-		punch_start = 37,
-		punch_end = 49,
-		speed_normal = 15,
-		speed_run = 15
+		stand_start = 0, stand_end = 23,
+		walk_start = 24, walk_end = 36,
+		run_start = 37, run_end = 49,
+		punch_start = 37, punch_end = 49,
+		speed_normal = 15, speed_run = 15
 	},
 	replace_rate = 5,
 	replace_what = {"default:torch"},
@@ -59,6 +52,7 @@ mobs:register_mob("mobs_monster:oerkki", {
 	},
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -71,8 +65,10 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:oerkki", S("Oerkki"), "default_obsidian.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs:oerkki", "mobs_monster:oerkki") -- compatiblity
+mobs:alias_mob("mobs:oerkki", "mobs_monster:oerkki")
diff --git a/sand_monster.lua b/sand_monster.lua
index 3a7fb01..c8a9121 100644
--- a/sand_monster.lua
+++ b/sand_monster.lua
@@ -1,7 +1,8 @@
--- Translation support
+
 local S = minetest.get_translator("mobs_monster")
 
 -- custom particle effects
+
 local effect = function(pos, amount, texture, min_size, max_size, radius, gravity, glow)
 
 	radius = radius or 2
@@ -28,7 +29,6 @@ local effect = function(pos, amount, texture, min_size, max_size, radius, gravit
 	})
 end
 
-
 -- Sand Monster by PilzAdam
 
 mobs:register_mob("mobs_monster:sand_monster", {
@@ -52,9 +52,7 @@ mobs:register_mob("mobs_monster:sand_monster", {
 	},
 	blood_texture = "default_desert_sand.png",
 	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_sandmonster"
-	},
+	sounds = {random = "mobs_sandmonster"},
 	walk_velocity = 1.5,
 	run_velocity = 4,
 	view_range = 8,
@@ -68,16 +66,11 @@ mobs:register_mob("mobs_monster:sand_monster", {
 	light_damage = 0,
 	fear_height = 4,
 	animation = {
-		speed_normal = 15,
-		speed_run = 15,
-		stand_start = 0,
-		stand_end = 39,
-		walk_start = 41,
-		walk_end = 72,
-		run_start = 74,
-		run_end = 105,
-		punch_start = 74,
-		punch_end = 105
+		speed_normal = 15, speed_run = 15,
+		stand_start = 0, stand_end = 39,
+		walk_start = 41, walk_end = 72,
+		run_start = 74, run_end = 105,
+		punch_start = 74, punch_end = 105
 	},
 	immune_to = {
 		{"default:shovel_wood", 3}, -- shovels deal more damage to sand monster
@@ -116,6 +109,8 @@ mobs:register_mob("mobs_monster:sand_monster", {
 ]]
 })
 
+-- where to spawn
+
 if not mobs.custom_spawn_monster then
 
 	mobs:spawn({
@@ -127,9 +122,11 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:sand_monster", S("Sand Monster"),
 		"default_desert_sand.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs:sand_monster", "mobs_monster:sand_monster") -- compatibility
+mobs:alias_mob("mobs:sand_monster", "mobs_monster:sand_monster")
diff --git a/spider.lua b/spider.lua
index c8a144b..b3fe0c8 100644
--- a/spider.lua
+++ b/spider.lua
@@ -1,10 +1,8 @@
 -- Translation support
 local S = minetest.get_translator("mobs_monster")
 
--- check for default mod
-local mod_def = minetest.get_modpath("default")
+-- helper function
 
--- helper
 local get_velocity = function(self)
 
 	local v = self.object:get_velocity()
@@ -15,6 +13,7 @@ local get_velocity = function(self)
 	return (v.x * v.x + v.z * v.z) ^ 0.5
 end
 
+-- custom spider types
 
 local spider_types = {
 
@@ -55,7 +54,6 @@ local spider_types = {
 	}
 }
 
-
 -- Spider by AspireMint (CC-BY-SA 3.0 license)
 
 mobs:register_mob("mobs_monster:spider", {
@@ -98,16 +96,11 @@ mobs:register_mob("mobs_monster:spider", {
 	light_damage = 0,
 	node_damage = false, -- disable damage_per_second node damage
 	animation = {
-		speed_normal = 15,
-		speed_run = 20,
-		stand_start = 0,
-		stand_end = 0,
-		walk_start = 1,
-		walk_end = 21,
-		run_start = 1,
-		run_end = 21,
-		punch_start = 25,
-		punch_end = 45
+		speed_normal = 15, speed_run = 20,
+		stand_start = 0, stand_end = 0,
+		walk_start = 1, walk_end = 21,
+		run_start = 1, run_end = 21,
+		punch_start = 25, punch_end = 45
 	},
 
 	-- check surrounding nodes and spawn a specific spider
@@ -126,9 +119,7 @@ mobs:register_mob("mobs_monster:spider", {
 				self.object:set_properties({textures = tmp.skins})
 				self.docile_by_day = tmp.docile
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				if tmp.shoot then
 					self.attack_type = "dogshoot"
@@ -141,6 +132,7 @@ mobs:register_mob("mobs_monster:spider", {
 				end
 
 				if tmp.small then
+
 					self.object:set_properties({
 						collisionbox = {-0.2, -0.2, -0.2, 0.2, 0, 0.2},
 						visual_size = {x = 0.25, y = 0.25}
@@ -159,9 +151,7 @@ mobs:register_mob("mobs_monster:spider", {
 
 		-- quarter second timer
 		self.spider_timer = (self.spider_timer or 0) + dtime
-		if self.spider_timer < 0.25 then
-			return
-		end
+		if self.spider_timer < 0.25 then return end
 		self.spider_timer = 0
 
 		-- need to be stopped to go onwards
@@ -171,11 +161,7 @@ mobs:register_mob("mobs_monster:spider", {
 		end
 
 		local pos = self.object:get_pos()
-		local yaw = self.object:get_yaw()
-
-		-- sanity check
-		if not yaw then return end
-
+		local yaw = self.object:get_yaw() ; if not yaw then return end
 		local prop = self.object:get_properties()
 
 		pos.y = pos.y + prop.collisionbox[2] - 0.2
@@ -231,6 +217,7 @@ mobs:register_mob("mobs_monster:spider", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -262,15 +249,17 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:spider", S("Spider"), "mobs_cobweb.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs_monster:spider2", "mobs_monster:spider") -- compatibility
+mobs:alias_mob("mobs_monster:spider2", "mobs_monster:spider")
 mobs:alias_mob("mobs:spider", "mobs_monster:spider")
 
+-- cobweb and recipe
 
--- cobweb
 minetest.register_node(":mobs:cobweb", {
 	description = S("Cobweb"),
 	drawtype = "plantlike",
@@ -289,7 +278,7 @@ minetest.register_node(":mobs:cobweb", {
 	groups = {snappy = 1, disable_jump = 1},
 	is_ground_content = false,
 	drop = "farming:string",
-	sounds = mod_def and default.node_sound_leaves_defaults()
+	sounds = mobs.node_sound_leaves_defaults()
 })
 
 minetest.register_craft({
@@ -301,6 +290,7 @@ minetest.register_craft({
 	}
 })
 
+-- cobweb place function
 
 local web_place = function(pos)
 
@@ -313,6 +303,8 @@ local web_place = function(pos)
 	end
 end
 
+-- cobweb arrow
+
 mobs:register_arrow("mobs_monster:cobweb", {
 	visual = "sprite",
 	visual_size = {x = 1, y = 1},
diff --git a/stone_monster.lua b/stone_monster.lua
index e3d47ec..3aa6b93 100644
--- a/stone_monster.lua
+++ b/stone_monster.lua
@@ -1,4 +1,6 @@
--- Translation support
+
+-- translation and custom stone monster types
+
 local S = minetest.get_translator("mobs_monster")
 
 local stone_types = {
@@ -22,7 +24,6 @@ local stone_types = {
 	}
 }
 
-
 -- Stone Monster by PilzAdam
 
 mobs:register_mob("mobs_monster:stone_monster", {
@@ -43,9 +44,7 @@ mobs:register_mob("mobs_monster:stone_monster", {
 		{"mobs_stone_monster2.png"} -- by AMMOnym
 	},
 	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_stonemonster"
-	},
+	sounds = {random = "mobs_stonemonster"},
 	walk_velocity = 1,
 	run_velocity = 2,
 	jump_height = 0,
@@ -61,16 +60,11 @@ mobs:register_mob("mobs_monster:stone_monster", {
 	lava_damage = 1,
 	light_damage = 0,
 	animation = {
-		speed_normal = 15,
-		speed_run = 15,
-		stand_start = 0,
-		stand_end = 14,
-		walk_start = 15,
-		walk_end = 38,
-		run_start = 40,
-		run_end = 63,
-		punch_start = 40,
-		punch_end = 63
+		speed_normal = 15, speed_run = 15,
+		stand_start = 0, stand_end = 14,
+		walk_start = 15, walk_end = 38,
+		run_start = 40, run_end = 63,
+		punch_start = 40, punch_end = 63
 	},
 	immune_to = {
 		{"default:pick_wood", 0}, -- wooden pick doesnt hurt stone monster
@@ -96,9 +90,7 @@ mobs:register_mob("mobs_monster:stone_monster", {
 				self.base_texture = tmp.skins
 				self.object:set_properties({textures = tmp.skins})
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				return true
 			end
@@ -108,6 +100,7 @@ mobs:register_mob("mobs_monster:stone_monster", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -120,8 +113,10 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:stone_monster", S("Stone Monster"), "default_stone.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs:stone_monster", "mobs_monster:stone_monster") -- compatibility
+mobs:alias_mob("mobs:stone_monster", "mobs_monster:stone_monster")
diff --git a/tree_monster.lua b/tree_monster.lua
index e28b8b5..5fb2130 100644
--- a/tree_monster.lua
+++ b/tree_monster.lua
@@ -1,4 +1,6 @@
--- Translation support
+
+-- translation and custom tree monster types
+
 local S = minetest.get_translator("mobs_monster")
 
 local tree_types = {
@@ -44,7 +46,6 @@ local tree_types = {
 	}
 }
 
-
 -- Tree Monster (or Tree Gollum) by PilzAdam
 
 mobs:register_mob("mobs_monster:tree_monster", {
@@ -67,9 +68,7 @@ mobs:register_mob("mobs_monster:tree_monster", {
 	},
 	blood_texture = "default_wood.png",
 	makes_footstep_sound = true,
-	sounds = {
-		random = "mobs_treemonster"
-	},
+	sounds = {random = "mobs_treemonster"},
 	walk_velocity = 1,
 	run_velocity = 3,
 	jump = true,
@@ -96,16 +95,11 @@ mobs:register_mob("mobs_monster:tree_monster", {
 --		{"all", 0}, -- only weapons on list deal damage
 	},
 	animation = {
-		speed_normal = 15,
-		speed_run = 15,
-		stand_start = 0,
-		stand_end = 24,
-		walk_start = 25,
-		walk_end = 47,
-		run_start = 48,
-		run_end = 62,
-		punch_start = 48,
-		punch_end = 62
+		speed_normal = 15, speed_run = 15,
+		stand_start = 0, stand_end = 24,
+		walk_start = 25, walk_end = 47,
+		run_start = 48, run_end = 62,
+		punch_start = 48, punch_end = 62
 	},
 
 	-- check surrounding nodes and spawn a specific tree monster
@@ -125,11 +119,10 @@ mobs:register_mob("mobs_monster:tree_monster", {
 				self.base_texture = tmp.skins
 				self.object:set_properties({textures = tmp.skins})
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				if tmp.explode then
+
 					self.attack_type = "explode"
 					self.explosion_radius = 3
 					self.explosion_timer = 3
@@ -156,6 +149,7 @@ mobs:register_mob("mobs_monster:tree_monster", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -169,8 +163,10 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:tree_monster", S("Tree Monster"), "default_tree_top.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs:tree_monster", "mobs_monster:tree_monster") -- compatibility
+mobs:alias_mob("mobs:tree_monster", "mobs_monster:tree_monster")