A few simple timewasters for when you have nothing better to do.
Tap the circle in the middle of the screen once the timer in the circle reaches 0.00 seconds! It's harder than it sounds.
Tap the square in the center of the screen once it turns green. This happens completely randomly and will tell you your reaction time.
Use the buttons in the middle of the screen (+1,+5,+10,+100,-1,-5,-10,-100) to reach the target number in a brand new, rapidly paced experience!