Whac-A-Mole is a very old game, which was played at the time in amusement arcade. This game is based on a simple principle: the player has a mallet which he has to use to hit the moles as soon as they come out from the holes in front of him.
In Whac-A-Mole games there can be other animals than moles, such as rabbits. The blow on their head should also be strong enough so that they do not return.
Whac-A-Mole will use your reflexes and your ability to react quickly.