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Playstation 2 - Air Force Delta Strike cheats

Cheat: Restore health and refill missiles:
Pause the game play, then press Left Analog-stick Up (2 times), Left 
Analog-stick Down (2 times), Right Analog-stick Left, Right Analog-stick Right, 
Right Analog-stick Left, Right Analog-stick Right, L3, R3. 
The sound will confirm, if the code is accepted.
Note: You can enable once in mission.

Self-destruct the Vic Viper:
While flying the Vic Viper, pause game play then press 
Up, Up, Down, Down, Left, Right, Left, Right, X, Circle.

New game+ bonuses:
Finish the entire game and save. Begin a new game with your saved game file.
You have all items, medals, stats etc. from previous game.

Double money
If you using only the machine gun to kill the enemies, you will earn 
double money.

Unlock Ellen McNichol in space missions:
Play with Ken. Each time, when you see Albert, shoot him down.
Try shooting him down in all mission.