Press spacebar to spend $15 to catch 3 random critters and mash them together to create a monster. It then sells the monster for cash. The arrows show how much cash you get. When your money drops below $15, you lose. Below is a profit chart shiowing how much you will make after making and selling your monsters: 4 Green = +20 3 Green = +15 2 Green = +10 1 Green = +5 1 Red = -5 3 Red = -15
Based on slot machines sort of.