Entering cheat mode:
Hold R1 + Circle before the "bird" logo loading screen appears. A new black screen with the phrase "Now Loading" and bouncing CDs in the background will confirm that cheat mode is active. If the normal "bird" screen appears, then the code was not entered in time. Each time a code is successfully entered, a small Namco character will appear in the lower left corner.

999,999,000 credits:
Enter cheat mode and press Down, Circle, Triangle(3), Circle, Triangle, Circle, Triangle, Circle + Triangle, then press and hold Circle + Triangle again at the bouncing CD screen. Begin the game and enter the fighter selection screen. The amount of credits available will be set to the maximum.

Change plane's color:
Enter cheat mode and press Up, Down, Left, Right, Up, Down, Left, Right, then hold R1 at the bouncing CD screen. For two player mode, replace the controller actions with Left, Right, Left, Right, Down, Up, Down, Up, Circle(2), Triangle(2), then press and hold Triangle again.

Change wingman plane's color:
Enter cheat mode and press R1 + Start(10).

Hidden mini-game:
Enter cheat mode and press Up, Left, Down, Right. Begin game play, then return to the title screen. A mini-game lasting approximately six seconds will begin while the main game loads again. The Ace Combat icon can be controlled with Left or L2, and Circle or R2. Press R1 to switch between three control options. Destroy as many of the ships and missiles as possible before the small bird walks from the left to right side of the screen.

Extra fighters:
Complete the game under the easy difficulty level. Allow the credits to complete after the Boss is defeated. The phrase "Extra 10" will appear on the top right corner of the title screen after it reappears. Use the plane select option to access the extra fighters.

Skip mission overview (Japanese version):
Press Triangle + Start.

Remove captions (Japanese version):
Pause game play, press L1 or R1, and resume the game. The Japanese text on the right side of the screen will disappear.