Reaktion for Android is a game that challenges a player''s reaction time. During game play, Reaktion lights up 1 of 9 colored touch buttons in a random pattern. The game player must react by touching the illuminated buttons as fast as the player can to keep playing the game. During game play the random display of the buttons gets faster and faster challenging the player''s reaction speed. Game players can play Reaktion solo, or play in a group by challenging other game players'' reaction time.