ZOMBIE NATION CHEAT CODES
Sound test:
INSTRUCTIONS
Enter code and reset the NES system.
| CODE | EFFECT |
|---|
| Hold Up + A + B |  Sound test: |
Restore energy:
INSTRUCTIONS
Pause your game and enter code
| CODE | EFFECT |
|---|
| press Up(2), Down(2), Left, Right, Left, Right, B, A, Start. | Restore energy: |