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Log Portal 2: Peer Review to rate it, shelve it, and keep it on the record.
Build a library that remembers what each game meant.
Details
Genres
PuzzleAdventure
Platforms
PlayStation 3 · Xbox 360
About
Portal 2: Peer Review includes an additional course for Portal 2 co-op campaign, dubbed "Art Therapy"; as well as Challenge Mode for both single-player or multiplayer campaign, where players can play specific levels and compete in friends/worldwide leader-board.