Free satellite:
On the Main Menu, press and hold the Z Button while entering the following: B, C-Left, C-Down, A. Note: The Infinite Ammo and Infinite Armor codes must be done before this will work.

Infinite ammo:
On the Main Menu, press and hold the Z Button while entering the following: L Button, R Button, L Button, R Button.

Infinite armor:
On the Main Menu, press and hold the Z Button while entering the following: Up, Left, Down, Left.

Unlock all levels:
On the Main Menu, press and hold the Z Button while entering the following: C-Up, C-Right, C-Down, C-Left, Start. Note: The Infinite Ammo and Infinite Armor codes must be done before this will work.

Free buildings:
This eliminates the need to collect scrap metal to build your buildings. On the Main Menu, press and hold the Z Button while entering the following: A, B, A, B. Note: The Infinite Ammo and Infinite Armor codes must be done before this will work.

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.