Tap on white tile, then the game is over. There are five modes to choose. -classic mode you can tap the lowest black block as soon as possible. Measure the time required to advance 50 steps. -challge mode If the 50 steps forward at a specified time,extra time will be given. Different number of steps to complete, different rewards. [50-100) : +12s [100-150) : +11s [150-200) : +10s …. [350 - ) : +5s -Classic Enhanced It is similar to the classical mode, except that the increase of blue blocks, you must click twice to advance -whac-mole As fast as possible within 30 seconds to hit all of the black blocks. Started slowly on the back will be faster. - Sense mode Tap fast in first 5 seconds, then continue touch,but stop before 10s.