diff --git a/_arena_lib/arena_callbacks.lua b/_arena_lib/arena_callbacks.lua
index 059ab35..30eac8d 100644
--- a/_arena_lib/arena_callbacks.lua
+++ b/_arena_lib/arena_callbacks.lua
@@ -1,6 +1,6 @@
 local function add_privs() end
 local function remove_privs() end
-local function create_glass_cage() end
+local function create_barrier_cage() end
 local function keep_teleporting() end
 local function drop_items() end
 
@@ -17,7 +17,7 @@ arena_lib.on_load("skywars", function(arena)
   for pl_name in pairs(arena.players) do
     local player = minetest.get_player_by_name(pl_name)
 
-    create_glass_cage(player)
+    create_barrier_cage(player)
     player:get_inventory():add_item("main", "skywars:kit_selector")
   end
 
@@ -40,6 +40,7 @@ arena_lib.on_start("skywars", function(arena)
   for pl_name in pairs(arena.players) do
     local player = minetest.get_player_by_name(pl_name)
 
+    minetest.sound_play("sw_start", {to_player = pl_name})
     add_privs(pl_name)
     skywars.generate_HUD(arena, pl_name)
     player:set_physics_override({
@@ -48,7 +49,7 @@ arena_lib.on_start("skywars", function(arena)
       jump=1
     })
     skywars.activate_enderpearl(player, arena)
-    player:get_inventory():remove_item("main", "skywars:kit_selector") 
+    player:get_inventory():remove_item("main", "skywars:kit_selector")
   end
 end)
 
@@ -58,6 +59,7 @@ arena_lib.on_celebration("skywars", function(arena, winner_name)
   for pl_name in pairs(arena.players) do
     local player = minetest.get_player_by_name(pl_name)
     
+    minetest.sound_play("sw_win", {to_player = pl_name})
     remove_privs(pl_name)
     skywars.block_enderpearl(player, arena)
   end
@@ -234,7 +236,7 @@ end
 
 
 
-function create_glass_cage(player)
+function create_barrier_cage(player)
   minetest.after(0.1, function()
     local original_pos = player:get_pos()
     local glass_nodes = {
@@ -253,7 +255,7 @@ function create_glass_cage(player)
     for _, relative_pos in pairs(glass_nodes) do
       local node_pos = vector.round(vector.add(original_pos, relative_pos))
       if minetest.get_node(node_pos).name == "air" then 
-        minetest.add_node(node_pos, {name="default:glass"})
+        minetest.add_node(node_pos, {name="skywars:barrier"})
         minetest.after(skywars_settings.loading_time, function()         
           minetest.remove_node(node_pos)
         end)
diff --git a/_chest_handler/treasures.lua b/_chest_handler/treasures.lua
index 19b839a..9b6c374 100644
--- a/_chest_handler/treasures.lua
+++ b/_chest_handler/treasures.lua
@@ -52,6 +52,8 @@ function skywars.select_random_treasures(chest, arena)
 					local random = math.random(1, 100)
 					local treasure_itemstack = treasure_to_itemstack(preciousness_filtered_treasures[j])
 
+					if treasure_itemstack == "error" then return generated_treasures end
+
 					if treasure_itemstack and random % (preciousness_filtered_treasures[j].rarity * 10) == 0 then
 						table.insert(generated_treasures, treasure_itemstack)
 						break
@@ -73,7 +75,7 @@ function treasure_to_itemstack(treasure)
 
 	if ItemStack(itemstack):is_known() == false then
 		minetest.log("error","[Skywars Treasures] I was asked to put "..treasure.name.." inside a chest, but it doesn't exist.")
-		return nil
+		return "error"
 	end
 	return ItemStack(itemstack)
 end
\ No newline at end of file
diff --git a/_map_handler/map_utils.lua b/_map_handler/map_utils.lua
index 9c3dde6..520a275 100644
--- a/_map_handler/map_utils.lua
+++ b/_map_handler/map_utils.lua
@@ -19,6 +19,26 @@ end
 
 
 
+minetest.register_node("skywars:barrier", {
+    description = "Unbreakable transparent node",
+    drawtype = "airlike",
+    paramtype = "light",
+    sunlight_propagates = true,
+    air_equivalent = true,
+    drop = "",
+    inventory_image = "sw_node_barrier.png",
+    wield_image = "sw_node_barrier.png",
+    groups = {oddly_breakable_by_hand = 2},
+    can_dig = function(pos, player)
+        if minetest.get_player_privs(player:get_player_name()).skywars_admin then
+            return true
+        end
+        return false
+    end
+})
+
+
+
 function skywars.iterate_area_nodes(min_pos, max_pos, func)
     for x = 1, max_pos.x - min_pos.x do
         for y = 1, max_pos.y - min_pos.y do
diff --git a/_tests/map_reset.lua b/_tests/map_reset.lua
index 448da50..219dde7 100644
--- a/_tests/map_reset.lua
+++ b/_tests/map_reset.lua
@@ -90,9 +90,9 @@ end
 
 
 minetest.register_node("skywars:test_node", {
-    description = "Skywars test block, don't use it!",
+    description = "Skywars test node, don't use it!",
     groups = {crumbly=1, soil=1, dig_immediate=3},
-    tiles = {"node_test.png"},
+    tiles = {"sw_node_test.png"},
 })
 
 
diff --git a/depends.txt b/depends.txt
deleted file mode 100644
index fa411de..0000000
--- a/depends.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-arena_lib
-default
\ No newline at end of file
diff --git a/mod.conf b/mod.conf
index 56e21fb..6c7649a 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,4 +1,4 @@
 name = skywars
 description = Skywars is a PvP minigame where players battle each other on floating islands until there is only one survivor remaining. Each player spawns on their own island and when the round begins must prepare for battle before crossing to the other islands and fighting.
-depends = arena_lib, default
+depends = arena_lib
 optional_depends = enderpearl, 3d_armor
\ No newline at end of file
diff --git a/sounds/sw_start.ogg b/sounds/sw_start.ogg
new file mode 100644
index 0000000..4a324fd
Binary files /dev/null and b/sounds/sw_start.ogg differ
diff --git a/sounds/sw_win.ogg b/sounds/sw_win.ogg
new file mode 100644
index 0000000..6610a98
Binary files /dev/null and b/sounds/sw_win.ogg differ
diff --git a/textures/sw_node_barrier.png b/textures/sw_node_barrier.png
new file mode 100644
index 0000000..af804ec
Binary files /dev/null and b/textures/sw_node_barrier.png differ
diff --git a/textures/node_test.png b/textures/sw_node_test.png
similarity index 100%
rename from textures/node_test.png
rename to textures/sw_node_test.png