The fish needs your guidance! Make sure that they don't incinerate themselves on lasers and other dangers by guiding them with your fish-food-on-a-stick. But don't let the fish eat the fish food, or you won't be able to control them anymore.
CLICK THE FLAG TWICE Dangers - Lasers, 10 damage at start Bombs, 20 damage at start Piranhas, 15 damage at start Magic Mushrooms, you'll see...