Heavy Weapon Deluxe
Note: This procedure involves editing game files; create a backup copy of the files before proceeding. Use a text editor to edit the .XML files in the "\popcapgames\heavyweapon\data" folder. Change the values in the files as desired to customize the game.
Get to level 5 (Zamblamia) and get a nuke. Do not use the nuke until you see a flying pterodactyl. Then, use the nuke. Notice that the pterodactyl is now fried chicken.