Portal 2
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

Brain Wars by Translimit, Inc. is a free brain game in the Puzzle Games category, available for iOS. Features: Multiplayer. It holds a 4.6/5 average from 2.5K store ratings.
Over 20 million downloads!
◇◆Competitive Brain Training Game◆◇
Increase your brain power and compete against players from around the world!
Experience the heated battle that will keep you on your toes!
Highly rated by players who enjoy Puzzles Crosswords, Sudoku, and other brain teasers!
▼The Rules
・Outscore your opponents with simple brain teasers!
・Defeat them and climb the worldwide rankings!
・Challenge your friends with real-time matches!
・Increase your Brain Power through continuous challenges!
◆Real-Time Battle Experience
Compete with worldwide challengers―LIVE! Test your opponents and push your brain to its limit!
◆Play With Friends!
Invite your friends for double the fun! Connect through FaceBook and challenge everyone!
◆Strive For World-class Rankings
The stage is the wo
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
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