Full Game Walkthrough...

Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Acid Boy	Complete The Wastes Dark World without dying.	50
Bandage Girl	Unlock Bandage Girl.	20
Brownie	Unlock Brownie.	20
Commute Boy	Complete Visceraville without dying.	50
Core Boy	Complete The Core without dying.	50
Glitch Boy	Unlock Glitch Boy.	20
Golden God	Complete 100% of the game.	100
I have Crabs!	Unlock the Headcrab.	30
Laser Boy	Complete The Forge Dark World without dying.	50
Lava Boy	Complete The Core Dark World without dying.	50
Living in the past	Complete all secret levels.	50
Master Of Darkness	Beat all Dark World levels.	30
Medium Rare	Beat all The Wastes Dark World A+ times.	20
Medium Well	Beat all The Core Dark World A+ times.	20
Medium	Beat all The Forge Dark World A+ times.	20
Metal Boy	Complete The Forge without dying.	50
Nostalgia	Complete a secret level.	20
Overtime Boy	Complete Visceraville Dark World without dying.	50
Rare	Beat all Forest Dark World A+ times.	20
Squirrel Boy	Complete The Forest Dark World without dying.	50
The End	Beat the Light World.	20
The Kid	Unlock The Kid.	30
Tofu Boy	Unlock Tofu Boy.	30
Waste Boy	Complete The Wastes without dying.	50
Well Done	Beat all Visceraville Dark World A+ times.	50
Wood Boy	Complete The Forest without dying.	50