Description

Before Portal, Aperture Science conducted experiments to determine whether human subjects could safely navigate dangerous ""test chambers"", until the artificial intelligence GLaDOS, governing the laboratory, killed its employees. At the end of the first game the protagonist Chell destroys GLaDOS and momentarily escapes the facility, but is dragged back inside by an unseen figure later identified by writer Erik Wolpaw as the ""Party Escort Bot"". A promotional comic shows estranged Aperture Science employee Doug Rattmann, who used graffiti to guide the player in Portal, placing Chell into suspended animation to save her life, until the beginning of Portal 2.

FEATURES:
• Walkthrough Videos
• Read character bios
• Guide on every level
• Cheats and tricks in level
• How to get through Challenge Modes
• Manual Game Guide
• Trailer Videos
• And many more

Enjoy the game with family and friends!

Download This Game Cheats for Portal 2 app!