iButton

from Midnight Labs, originally released 17th June, 2009

iButton allows you to test your speed, dexterity, endurance and competitive spirit against your self or friends in several different challenges. Play with up to 4 people simultaneously to see who is the master of the buttons!!

Features
* Up to 4 players!
* React - Reaction time.
...

Available for $0.99 on the App Store

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