Defeat Red Ants
Rapidly tap A when fighting a red ant.

Convert To Queen
Enter the house and move between the television and the chair. Use the electric socket closest to the colony to shock yourself. The word "Change" will appear to confirm correct trick entry. You will reappear in the colony as the Queen.

Cat Easter Egg
Begin game play in full game mode. Select the graph icon and press A again. Wait for the cat to appear on the fence during the house scene. Point the cursor at the cat and press A. The cat's eyes will bulge as it falls every time A is pressed.

Scenario Select
Attach a mouse controller to port two. Use controller one to begin a game and enter scenario mode. Use the mouse to highlight the scenarios, and use controller one to select a scenario.