Reset the timer before time's up(0 second)! Survive as long as you can!!
■5 kinds of timers(9,16,25,36 and 49 timers) for your selections!!
■Normal:The number of timer will turn red when time remaining is less than 3 seconds.
■Hard:The number of timer will not turn red."
Test your agility (Dynamic Visual Acuity) and your finger limit!!