MadLab Whack-A-Mole Kit (Solder Assembly Required) Features --power supply: 9 V battery (not incl.) --dimensions: 56 x 56 x 18 mm / 2.2 x 2.2 x 0.7" Overview Patterned after the classic carnival and arcade game, the Whack A Mole is two games in one:. The first game is to test your speed, reflexes and reaction time. When the moles light up react as fast as you can and "Whack the Mole". The second game is Moley Says, to test your memory. Memorize and then repeat a sequence of lights.