BackTrack Cheats

Game Boy Advance - BackTrack Cheats

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.

Enter WEAP as a password.

Enter GOD as a password.

Enter AMMO as a password.