You do not have to register, you can play it as guest too!Come and try this reaction test app game where you can submit your score and see how fast you really are compared to others! Reaction game is fun and addictive and really simple "game". Try out this app!** Premissions used in this app is for ads and to submit high score! **This app test your reaction speed. To do so, you must * Touch the blue button * Wait for timer to go 0 * Click anywhere on the screen when ever screen turns black! * High score is submitted automatically when your phone is connected to internet while playing it.See how fast you are!!