Here are some good cheats for the "Panzers". Just hit the "enter" button and give....
motorhead: One shot destroys enemy
SheepInTheTrees: God Mode
MoneySong: 1000 Prestige points
SpotTheBrainShell: 1 more Experience star
SelfDefenceAgainstFreshFruit: No damage
BicycleRepairMan: Unlimited Ammo