Click on the bats to attack with one of your characters. Kill the bats to win. Turn order is this: Red Cat Blue Cat Bat1 Bat2 (Warning:DO NOT TRY TO ATTACK WHILE THE BATS ARE ATTACKING, THIS WILL BREAK THE GAME)
The way it works is it uses variables to determine which cat's turn it is, and signals to trigger attacks. The bats use signals to determine when to attack, and also to make sure they attack in a certain order. There is one major effect to this though:The last bat to be attacked by the blue cat will target the blue cat, and the other bat will target the red cat.