Free Buildings Hold Z at the menu and type: A Button, B Button, A Button, B Button Free Satellite Press and hold Z at the menu and type: B Button, C-Left, C-Down, A Button Infinite Ammo Hold Z at the menu and type: L Button, R Button, L Button, R Button Infinite Armor Hold Z at the menu and type: Up, Right, Down, Left Unlock all Levels Press and hold Z at the menu and hit: C-Up, C-Right, C-Down, C-Left, Start Faster tanks At the main menu, hold R + Z and press C-Up. If you entered the code correctly, you will hear a sound.