diff --git a/items.lua b/items.lua
index 09fd98c..6412c1e 100644
--- a/items.lua
+++ b/items.lua
@@ -20,6 +20,8 @@ local function add_more_nodes(name)
 		)
 		minetest.register_alias("stairs:stair_"..name, "hell"..":stair_"..name)
 		minetest.register_alias("stairs:slab_"..name, "hell"..":slab_"..name)
+		minetest.register_alias("nether"..":stair_"..name, "hell"..":stair_"..name)
+		minetest.register_alias("nether"..":slab_"..name, "hell"..":slab_"..name)
 	else
 		stairs.register_stair_and_slab(
 			name, nd,
@@ -84,6 +86,7 @@ minetest.register_node("hell:hellrack", {
 	end,
 })
 add_more_nodes("hellrack")
+minetest.register_alias("nether:netherrack", "hell:hellrack")
 
 minetest.register_node("hell:hellrack_tiled", {
 	description = "Tiled Hellrack",
@@ -95,6 +98,7 @@ minetest.register_node("hell:hellrack_tiled", {
 	end,
 })
 add_more_nodes("hellrack_tiled")
+minetest.register_alias("nether:netherrack_tiled", "hell:hellrack_tiled")
 
 minetest.register_node("hell:hellrack_soil", {
 	description = "Dirty Hellrack",
@@ -105,6 +109,7 @@ minetest.register_node("hell:hellrack_soil", {
 		return digging_allowed(player, 2)
 	end,
 })
+minetest.register_alias("nether::netherrack_soil", "hell:hellrack_soil")
 
 minetest.register_node("hell:hellrack_black", {
 	description = "Black Hellrack",
@@ -116,6 +121,7 @@ minetest.register_node("hell:hellrack_black", {
 	end,
 })
 add_more_nodes("hellrack_black")
+minetest.register_alias("nether:netherrack_black", "hell:hellrack_black")
 
 minetest.register_node("hell:hellrack_blue", {
 	description = "Blue Hellrack",
@@ -127,6 +133,7 @@ minetest.register_node("hell:hellrack_blue", {
 	end,
 })
 add_more_nodes("hellrack_blue")
+minetest.register_alias("nether:netherrack_blue", "hell:hellrack_blue")
 
 -- Hellbrick
 minetest.register_node("hell:hellrack_brick", {
@@ -139,6 +146,7 @@ minetest.register_node("hell:hellrack_brick", {
 	end,
 })
 add_more_nodes("hellrack_brick")
+minetest.register_alias("nether:netherrack_brick", "hell:hellrack_brick")
 
 minetest.register_node("hell:hellrack_brick_blue", {
 	description = "Blue Hellrack Brick",
@@ -150,6 +158,7 @@ minetest.register_node("hell:hellrack_brick_blue", {
 	end,
 })
 add_more_nodes("hellrack_brick_blue")
+minetest.register_alias("nether:netherrack_brick_blue", "hell:hellrack_brick_blue")
 
 minetest.register_node("hell:hellrack_brick_black", {
 	description = "Black Hellrack Brick",
@@ -161,6 +170,7 @@ minetest.register_node("hell:hellrack_brick_black", {
 	end,
 })
 add_more_nodes("hellrack_brick_black")
+minetest.register_alias("nether:netherrack_brick_black", "hell:hellrack_brick_black")
 
 minetest.register_node("hell:white", {
 	description = "Siwtonic block",
@@ -172,7 +182,7 @@ minetest.register_node("hell:white", {
 	end,
 })
 add_more_nodes("white")
-
+minetest.register_alias("nether:white", "hell:white")
 
 -- Hell blood
 minetest.register_node("hell:sapling", {
@@ -190,6 +200,7 @@ minetest.register_node("hell:sapling", {
 	groups = {snappy=2, oddly_breakable_by_hand=2, attached_node=1},
 	sounds = default.node_sound_leaves_defaults(),
 })
+minetest.register_alias("nether:sapling", "hell:sapling")
 
 minetest.register_node("hell:blood", {
 	description = "Hell Blood",
@@ -198,6 +209,7 @@ minetest.register_node("hell:blood", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("blood")
+minetest.register_alias("nether:blood", "hell:blood")
 
 minetest.register_node("hell:blood_cooked", {
 	description = "Cooked Hell Blood",
@@ -210,6 +222,7 @@ minetest.register_node("hell:blood_cooked", {
 	end,
 })
 add_more_nodes("blood_cooked")
+minetest.register_alias("nether:blood_cooked", "hell:blood_cooked")
 
 minetest.register_node("hell:blood_empty", {
 	description = "Hell Blood Extracted",
@@ -218,7 +231,7 @@ minetest.register_node("hell:blood_empty", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("blood_empty")
-
+minetest.register_alias("nether:blood_empty", "hell:blood_empty")
 
 minetest.register_node("hell:blood_top", {
 	description = "Hell Blood Head",
@@ -227,6 +240,7 @@ minetest.register_node("hell:blood_top", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("blood_top")
+minetest.register_alias("nether:blood_top", "hell:blood_top")
 
 minetest.register_node("hell:blood_top_cooked", {
 	description = "Cooked Hell Blood Head",
@@ -239,6 +253,7 @@ minetest.register_node("hell:blood_top_cooked", {
 	end,
 })
 add_more_nodes("blood_top_cooked")
+minetest.register_alias("nether:blood_top_cooked", "hell:blood_top_cooked")
 
 minetest.register_node("hell:blood_top_empty", {
 	description = "Hell Blood Head Extracted",
@@ -247,7 +262,7 @@ minetest.register_node("hell:blood_top_empty", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("blood_top_empty")
-
+minetest.register_alias("nether:blood_top_empty", "hell:blood_top_empty")
 
 minetest.register_node("hell:blood_stem", {
 	description = "Hell Blood Stem",
@@ -256,6 +271,7 @@ minetest.register_node("hell:blood_stem", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("blood_stem")
+minetest.register_alias("nether:blood_stem", "hell:blood_stem")
 
 minetest.register_node("hell:blood_stem_cooked", {
 	description = "Cooked Hell Blood Stem",
@@ -268,6 +284,7 @@ minetest.register_node("hell:blood_stem_cooked", {
 	end,
 })
 add_more_nodes("blood_stem_cooked")
+minetest.register_alias("nether:blood_stem_cooked", "hell:blood_stem_cooked")
 
 minetest.register_node("hell:blood_stem_empty", {
 	description = "Hell Blood Stem Extracted",
@@ -276,7 +293,7 @@ minetest.register_node("hell:blood_stem_empty", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("blood_stem_empty")
-
+minetest.register_alias("nether:blood_stem_empty", "hell:blood_stem_empty")
 
 minetest.register_node("hell:wood", {
 	description = "Hell Blood Wood",
@@ -285,6 +302,7 @@ minetest.register_node("hell:wood", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("wood")
+minetest.register_alias("nether:wood", "hell:wood")
 
 minetest.register_node("hell:wood_cooked", {
 	description = "Cooked Hell Blood Wood",
@@ -297,6 +315,7 @@ minetest.register_node("hell:wood_cooked", {
 	end,
 })
 add_more_nodes("wood_cooked")
+minetest.register_alias("nether:wood_cooked", "hell:wood_cooked")
 
 minetest.register_node("hell:wood_empty", {
 	description = "Hell Wood",
@@ -305,6 +324,7 @@ minetest.register_node("hell:wood_empty", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("wood_empty")
+minetest.register_alias("nether:wood_empty", "hell:wood_empty")
 
 minetest.register_node("hell:extractor", {
 	description = "Hell Blood Extractor",
@@ -315,6 +335,7 @@ minetest.register_node("hell:extractor", {
 		return digging_allowed(player, 3)
 	end,
 })
+minetest.register_alias("nether:extractor", "hell:extractor")
 
 -- Hell fruit
 minetest.register_node("hell:fruit_leaves", {
@@ -325,6 +346,7 @@ minetest.register_node("hell:fruit_leaves", {
 	furnace_burntime = 18,
 })
 add_more_nodes("fruit_leaves")
+minetest.register_alias("nether:fruit_leaves", "hell:fruit_leaves")
 
 local function room_for_items(inv)
 	local free_slots = 0
@@ -389,6 +411,7 @@ minetest.register_node("hell:apple", {
 	furnace_burntime = 6,
 	on_use = minetest.item_eat(-5, "hell:blood_extracted 2"),
 })
+minetest.register_alias("nether:apple", "hell:apple")
 
 local drop_fruit = minetest.registered_nodes["hell:apple"].on_drop
 minetest.override_item("hell:apple", {
@@ -433,7 +456,7 @@ minetest.register_node("hell:vine", {
 		end
 	end
 })
-
+minetest.register_alias("nether:vine", "hell:vine")
 
 -- forest stuff
 
@@ -456,6 +479,7 @@ for n,i in pairs({"small", "middle", "big"}) do
 			fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
 		},
 	})
+	minetest.register_alias("nether:grass_"..i, "hell:grass_"..i)
 end
 
 minetest.register_node("hell:glowflower", {
@@ -476,6 +500,7 @@ minetest.register_node("hell:glowflower", {
 		fixed = { -0.15, -0.5, -0.15, 0.15, 0.2, 0.15 },
 	},
 })
+minetest.register_alias("nether:glowflower", "hell:glowflower")
 
 minetest.register_node("hell:tree_sapling", {
 	description = "Hell Tree Sapling",
@@ -492,6 +517,7 @@ minetest.register_node("hell:tree_sapling", {
 	groups = {snappy=2, oddly_breakable_by_hand=2, attached_node=1},
 	sounds = default.node_sound_leaves_defaults(),
 })
+minetest.register_alias("nether:tree_sapling", "hell:tree_sapling")
 
 minetest.register_node("hell:tree", {
 	description = "Hell Trunk",
@@ -502,6 +528,7 @@ minetest.register_node("hell:tree", {
 	sounds = default.node_sound_wood_defaults(),
 	on_place = minetest.rotate_node
 })
+minetest.register_alias("nether:tree", "hell:tree")
 
 minetest.register_node("hell:tree_corner", {
 	description = "Hell Trunk Corner",
@@ -514,6 +541,7 @@ minetest.register_node("hell:tree_corner", {
 	sounds = default.node_sound_wood_defaults(),
 	on_place = minetest.rotate_node
 })
+minetest.register_alias("nether:tree_corner", "hell:tree_corner")
 
 minetest.register_node("hell:forest_wood", {
 	description = "Hell Wood Block",
@@ -522,6 +550,7 @@ minetest.register_node("hell:forest_wood", {
 	sounds = default.node_sound_wood_defaults(),
 })
 add_more_nodes("forest_wood")
+minetest.register_alias("nether:forest_wood", "hell:forest_wood")
 
 minetest.register_node("hell:leaves", {
 	description = "Hell Leaves",
@@ -549,6 +578,7 @@ minetest.register_node("hell:leaves", {
 	},
 	sounds = default.node_sound_leaves_defaults(),
 })
+minetest.register_alias("nether:leaves", "hell:leaves")
 
 minetest.register_node("hell:dirt", {
 	description = "Hell Dirt",
@@ -556,6 +586,7 @@ minetest.register_node("hell:dirt", {
 	groups = {crumbly=3,soil=1,hell_dirt=1},
 	sounds = default.node_sound_dirt_defaults(),
 })
+minetest.register_alias("nether:dirt", "hell:dirt")
 
 minetest.register_node("hell:dirt_top", {
 	description = "Hell Dirt Top",
@@ -568,6 +599,7 @@ minetest.register_node("hell:dirt_top", {
 		footstep = {name="default_grass_footstep", gain=0.25},
 	}),
 })
+minetest.register_alias("nether:dirt_top", "hell:dirt_top")
 
 minetest.register_node("hell:dirt_bottom", {
 	description = "Hellrack Dirt Transition",
@@ -584,7 +616,7 @@ minetest.register_node("hell:dirt_bottom", {
 		return digging_allowed(player, 2)
 	end,
 })
-
+minetest.register_alias("nether:dirt_bottom", "hell:dirt_bottom")
 
 -- Hell torch
 minetest.register_node("hell:torch", {
@@ -618,69 +650,48 @@ minetest.register_node("hell:torch", {
 	legacy_wallmounted = true,
 	sounds = default.node_sound_defaults(),
 })
-
-local invisible = "hell_transparent.png"
-minetest.register_node("hell:portal", {
-	description = "Hell Portal Essence",
-	tiles = {invisible, invisible, invisible, invisible, "hell_portal_stuff.png"},
-	inventory_image = "hell_portal_stuff.png",
-	wield_image = "hell_portal_stuff.png",
-	light_source = 12,
-	paramtype = "light",
-	sunlight_propagates = true,
-	use_texture_alpha = true,
-	walkable = false,
-	pointable = false,
-	buildable_to = false,
-	drop = "",
-	diggable = false,
-	groups = {not_in_creative_inventory=1},
-	post_effect_color = {a=200, r=50, g=0, b=60},--{a=180, r=128, g=0, b=128}
-	drawtype = "nodebox",
-	paramtype2 = "facedir",
-	node_box = {
-		type = "fixed",
-		fixed = {
-			{-0.5, -0.5, -0.1,  0.5, 0.5, 0.1},
-		},
-	},
-})
-
+minetest.register_alias("nether:torch", "hell:torch")
 
 minetest.register_craftitem("hell:grass", {
 	description = "Hell Grass",
 	inventory_image = "hell_grass.png",
 })
+minetest.register_alias("nether:grass", "hell:grass")
 
 minetest.register_craftitem("hell:grass_dried", {
 	description = "Dried Hell Grass",
 	inventory_image = "hell_grass_dried.png",
 	furnace_burntime = 1,
 })
+minetest.register_alias("nether:grass_dried", "hell:grass_dried")
 
 minetest.register_craftitem("hell:forest_planks", {
 	description = "Hell Wooden Planks",
 	inventory_image = "hell_forest_planks.png",
 	stack_max = 990,
 })
+minetest.register_alias("nether:forest_planks", "hell:forest_planks")
 
 minetest.register_craftitem("hell:bark", {
 	description = "Hell Trunk Bark",
 	inventory_image = "hell_bark.png",
 	furnace_burntime = 5,
 })
+minetest.register_alias("nether:bark", "hell:bark")
 
 -- Hell Pearl
 minetest.register_craftitem("hell:pearl", {
 	description = "Hell Pearl",
 	inventory_image = "hell_pearl.png",
 })
+minetest.register_alias("nether:pearl", "hell:pearl")
 
 minetest.register_craftitem("hell:stick", {
 	description = "Hell Stick",
 	inventory_image = "hell_stick.png",
 	groups = {stick=1},
 })
+minetest.register_alias("nether:stick", "hell:stick")
 
 local tmp = {}
 minetest.register_craftitem("hell:shroom_head", {
@@ -709,30 +720,35 @@ minetest.register_craftitem("hell:shroom_head", {
 		end
 	end
 })
+minetest.register_alias("nether:shroom_head", "hell:shroom_head")
 
 minetest.register_craftitem("hell:shroom_stem", {
 	description = "Hell Mushroom Stem",
 	inventory_image = "hell_shroom_stem.png",
 	furnace_burntime = 3,
 })
+minetest.register_alias("nether:shroom_stem", "hell:shroom_stem")
 
 minetest.register_craftitem("hell:fruit_leaf", {
 	description = "Hell Fruit Leaf",
 	inventory_image = "hell_fruit_leaf.png",
 	furnace_burntime = 2,
 })
+minetest.register_alias("nether:fruit_leaf", "hell:fruit_leaf")
 
 minetest.register_craftitem("hell:fruit_no_leaf", {
 	description = "Hell Fruit Without Leaf",
 	inventory_image = "hell_fruit_no_leaf.png",
 	furnace_burntime = 4,
 })
+minetest.register_alias("nether:fruit_no_leaf", "hell:fruit_no_leaf")
 
 minetest.register_craftitem("hell:fim", {
 	description = "Hell FIM",	--fruit in mushroom
 	inventory_image = "hell_fim.png",
 	furnace_burntime = 10,
 })
+minetest.register_alias("nether:fim", "hell:fim")
 
 local blood_exno = {}
 for _,i in ipairs({"hell:blood", "hell:blood_top", "hell:blood_stem"}) do
@@ -791,6 +807,7 @@ minetest.register_craftitem("hell:blood_extracted", {
 		return itemstack
 	end
 })
+minetest.register_alias("nether:blood_extracted", "hell:blood_extracted")
 
 minetest.register_craftitem("hell:hotbed", {
 	description = "Cooked Blood",
@@ -816,7 +833,7 @@ minetest.register_craftitem("hell:hotbed", {
 		return itemstack
 	end
 })
-
+minetest.register_alias("nether:hotbed", "hell:hotbed")
 
 minetest.register_tool("hell:pick_mushroom", {
 	description = "Hell Mushroom Pickaxe",
@@ -829,6 +846,7 @@ minetest.register_tool("hell:pick_mushroom", {
 		},
 	},
 })
+minetest.register_alias("nether:pick_musroom", "hell:pick_mushroom")
 
 minetest.register_tool("hell:pick_wood", {
 	description = "Hell Wood Pickaxe",
@@ -843,6 +861,7 @@ minetest.register_tool("hell:pick_wood", {
 		damage_groups = {fleshy=2},
 	},
 })
+minetest.register_alias("nether:pick_wood", "hell:pick_wood")
 
 minetest.register_tool("hell:pick_hellrack", {
 	description = "Hellrack Pickaxe",
@@ -857,6 +876,7 @@ minetest.register_tool("hell:pick_hellrack", {
 		damage_groups = {fleshy=3},
 	},
 })
+minetest.register_alias("nether:pick_netherrack", "hell:pick_hellrack")
 
 minetest.register_tool("hell:pick_hellrack_blue", {
 	description = "Blue Hellrack Pickaxe",
@@ -871,6 +891,7 @@ minetest.register_tool("hell:pick_hellrack_blue", {
 		damage_groups = {fleshy=4},
 	},
 })
+minetest.register_alias("nether:pick_netherrack_blue", "hell:pick_hellrack_blue")
 
 minetest.register_tool("hell:pick_white", {
 	description = "Siwtonic Pickaxe",
@@ -885,6 +906,7 @@ minetest.register_tool("hell:pick_white", {
 		damage_groups = {fleshy=5},
 	},
 })
+minetest.register_alias("nether:pick_white", "hell:pick_white")
 
 minetest.register_tool("hell:axe_hellrack", {
 	description = "Hellrack Axe",
@@ -898,6 +920,7 @@ minetest.register_tool("hell:axe_hellrack", {
 		damage_groups = {fleshy=4},
 	},
 })
+minetest.register_alias("nether:axe_netherrack", "hell:axe_hellrack")
 
 minetest.register_tool("hell:axe_hellrack_blue", {
 	description = "Blue Hellrack Axe",
@@ -911,6 +934,7 @@ minetest.register_tool("hell:axe_hellrack_blue", {
 		damage_groups = {fleshy=6},
 	},
 })
+minetest.register_alias("nether:axe_netherrack_blue", "hell:axe_hellrack_blue")
 
 minetest.register_tool("hell:axe_white", {
 	description = "Siwtonic Axe",
@@ -924,6 +948,7 @@ minetest.register_tool("hell:axe_white", {
 		damage_groups = {fleshy=8},
 	},
 })
+minetest.register_alias("nether:axe_white", "hell:axe_white")
 
 minetest.register_tool("hell:shovel_hellrack", {
 	description = "Hellrack Shovel",
@@ -938,6 +963,7 @@ minetest.register_tool("hell:shovel_hellrack", {
 		damage_groups = {fleshy=2},
 	},
 })
+minetest.register_alias("nether:shovel_netherrack", "hell:shovel_hellrack")
 
 minetest.register_tool("hell:shovel_hellrack_blue", {
 	description = "Blue Hellrack Shovel",
@@ -952,6 +978,7 @@ minetest.register_tool("hell:shovel_hellrack_blue", {
 		damage_groups = {fleshy=3},
 	},
 })
+minetest.register_alias("nether:shovel_netherrack_blue", "hell:shovel_hellrack_blue")
 
 minetest.register_tool("hell:shovel_white", {
 	description = "Siwtonic Shovel",
@@ -966,6 +993,7 @@ minetest.register_tool("hell:shovel_white", {
 		damage_groups = {fleshy=4},
 	},
 })
+minetest.register_alias("nether:shovel_white", "hell:shovel_white")
 
 minetest.register_tool("hell:sword_hellrack", {
 	description = "Hellrack Sword",
@@ -979,6 +1007,7 @@ minetest.register_tool("hell:sword_hellrack", {
 		damage_groups = {fleshy=5},
 	},
 })
+minetest.register_alias("nether:sword_netherrack", "hell:sword_hellrack")
 
 minetest.register_tool("hell:sword_hellrack_blue", {
 	description = "Blue Hellrack Sword",
@@ -992,6 +1021,7 @@ minetest.register_tool("hell:sword_hellrack_blue", {
 		damage_groups = {fleshy=7},
 	},
 })
+minetest.register_alias("nether:sword_netherrack_blue", "hell:sword_hellrack_blue")
 
 minetest.register_tool("hell:sword_white", {
 	description = "Siwtonic Sword",
@@ -1006,7 +1036,7 @@ minetest.register_tool("hell:sword_white", {
 		damage_groups = {fleshy=11},
 	},
 })
-
+minetest.register_alias("nether:sword_white", "hell:sword_white")
 
 -- override creative hand
 if minetest.settings:get_bool("creative_mode") then
diff --git a/pearl.lua b/pearl.lua
index a01da20..c5a6a1a 100644
--- a/pearl.lua
+++ b/pearl.lua
@@ -68,27 +68,6 @@ local function teleport_player(pos, player)
 	return true
 end
 
---[[
-local dg_ps = {}
-local function forceload(pos)
-	dg_ps[#dg_ps+1] = pos
-	minetest.forceload_block(pos)
-	minetest.after(5, function(pos)
-		minetest.forceload_free_block(pos)
-		for i,p in pairs(dg_ps) do
-			if vector.equals(p, pos) then
-				dg_ps[i] = nil
-				return
-			end
-		end
-	end, pos)
-end
-minetest.register_on_shutdown(function()
-	for _,p in pairs(dg_ps) do
-		minetest.forceload_free_block(p)
-	end
-end)--]]
-
 minetest.register_entity("hell:pearl_entity", {
 	collisionbox = {0,0,0,0,0,0}, --not pointable
 	visual_size = {x=0.1, y=0.1},