Portal 2 Guide
Unofficial Portal 2 Guide by swaggers for SuperCheats.com
Portal is back with a full release for Xbox 360, PC, and PS3. Work your way through tons of puzzles utilizing new and exciting methods like the Propulsion Gel. GLaDOS is joined by a new voices Wheatley and Cave Johnson. Our walkthrough will get you through all the puzzles and get you ALL the achievements.