diff --git a/mods/awards/api.lua b/mods/awards/api.lua
index 55761ad..a9e0a14 100644
--- a/mods/awards/api.lua
+++ b/mods/awards/api.lua
@@ -1,5 +1,11 @@
 -- AWARDS
 -- by Rubenwardy, CC-BY-SA
+
+-- CONFIGURATION
+-- Use a graphical display for unlocking achievements. (Possible values: true | false)
+local Use_Formspec = true
+-- END OF CONFIGURATION
+
 -------------------------------------------------------
 -- this is api function file
 -------------------------------------------------------
@@ -68,7 +74,6 @@ end
 
 -- Load files
 dofile(minetest.get_modpath("awards").."/triggers.lua")
-dofile(minetest.get_modpath("awards").."/config.txt")
 
 -- API Functions
 function awards.register_achievement(name,data_table)
diff --git a/mods/awards/config.txt b/mods/awards/config.txt
deleted file mode 100644
index 9fe580e..0000000
--- a/mods/awards/config.txt
+++ /dev/null
@@ -1,8 +0,0 @@
---	AWARDS
---	   by Rubenwardy, CC-BY-SA
--------------------------------------------------------
--- this is the configuration file for the awards mod
--------------------------------------------------------
-
-Use_Formspec = true
---Use a graphical display for unlocking achievements. (Possible values: true | false)
\ No newline at end of file
diff --git a/mods/core/player.lua b/mods/core/player.lua
index f686db4..5b2d439 100644
--- a/mods/core/player.lua
+++ b/mods/core/player.lua
@@ -6,15 +6,15 @@
 --
 
 -- Player animation speed
-animation_speed = 30
+local animation_speed = 30
 
 -- Player animation blending
 -- Note: This is currently broken due to a bug in Irrlicht, leave at 0
-animation_blend = 0
+local animation_blend = 0
 
 -- Default player appearance
-default_model = "character.b3d"
-default_textures = {"character.png", }
+local default_model = "character.b3d"
+local default_textures = {"character.png", }
 
 -- Frame ranges for each player model
 function player_get_animations(model)
diff --git a/mods/default/init.lua b/mods/default/init.lua
index 641bf46..b87f02d 100644
--- a/mods/default/init.lua
+++ b/mods/default/init.lua
@@ -3,10 +3,9 @@
 
 -- The API documentation in here was moved into doc/lua_api.txt
 
-WATER_ALPHA = 160
-WATER_VISC = 1
-LAVA_VISC = 7
-LIGHT_MAX = 14
+local WATER_ALPHA = 160
+local WATER_VISC = 1
+local LAVA_VISC = 7
 
 -- Definitions made by this mod that other mods can use too
 default = {}
@@ -527,7 +526,7 @@ minetest.register_node("default:lava_flowing", {
 	},
 	drop = "",
 	paramtype = "light",
-	light_source = LIGHT_MAX - 1,
+	light_source = minetest.LIGHT_MAX - 1,
 	walkable = false,
 	pointable = false,
 	diggable = false,
@@ -555,7 +554,7 @@ minetest.register_node("default:lava_source", {
 	},
 	drop = "",
 	paramtype = "light",
-	light_source = LIGHT_MAX - 1,
+	light_source = minetest.LIGHT_MAX - 1,
 	walkable = false,
 	pointable = false,
 	diggable = false,
@@ -585,7 +584,7 @@ minetest.register_node("default:torch", {
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
 	walkable = false,
-	light_source = LIGHT_MAX-1,
+	light_source = minetest.LIGHT_MAX-1,
 	selection_box = {
 		type = "wallmounted",
 		wall_top = {-0.1, 0.5-0.6, -0.1, 0.1, 0.5, 0.1},
diff --git a/mods/minerals/init.lua b/mods/minerals/init.lua
index 8a9bca5..71697c9 100644
--- a/mods/minerals/init.lua
+++ b/mods/minerals/init.lua
@@ -1,4 +1,4 @@
-MINERALS_LIST={
+local MINERALS_LIST={
 	'lazurite',
 	'anthracite',
 	'lignite',
@@ -39,7 +39,7 @@ MINERALS_LIST={
 	'charcoal'
 }
 
-MINERALS_DESC_LIST={
+local MINERALS_DESC_LIST={
 	'Lazurite',
 	'Anthracite',
 	'Lignite',
@@ -121,4 +121,4 @@ minetest.register_craft({
 	type = "fuel",
 	recipe = "minerals:anthracite",
 	burntime = 50,
-})
\ No newline at end of file
+})
diff --git a/mods/tnt/init.lua b/mods/tnt/init.lua
index 8b68083..723d423 100644
--- a/mods/tnt/init.lua
+++ b/mods/tnt/init.lua
@@ -32,7 +32,7 @@ local destroy = function(pos)
 	end
 end
 
-boom = function(pos, time)
+local boom = function(pos, time)
 	minetest.after(time, function(pos)
 		if minetest.get_node(pos).name ~= "tnt:tnt_burning" then
 			return
@@ -161,7 +161,7 @@ minetest.register_node("tnt:tnt_burning", {
 minetest.register_node("tnt:boom", {
 	drawtype = "plantlike",
 	tiles = {"tnt_boom.png"},
-	light_source = LIGHT_MAX,
+	light_source = minetest.LIGHT_MAX,
 	walkable = false,
 	drop = "",
 	groups = {dig_immediate=3},