BACKTRACK CHEATS

GBA

Cheat mode:
Press Select at the "Dark Side Of The Moon" menu. Then, press L, Right, B, L, R, Left to unlock the "Build Secret Base" option. Enter the "Build Secret Base" screen, then press A and enter one of the following passwords.

All weapons
Enter WEAP as a password.

Unlimited ammunition
Enter AMMO as a password.

Invincibility
Enter GOD as a password.