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Portal 2: Peer Review
Xbox 360
October 4th 2011
Other Platforms:
PS3
All Editions:
0 rankings
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.
Franchise:
Portal
Developer:
Valve
Publisher:
Valve
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