On air combat after you pass it on easy then start a new game and up in the right hand corner in says (010) and you have every plane and unlimited continues.

Here are 3 codes for Air Combat. To utilize these, you must first do the following:

Before the "Now Loading" screen with the bird logo comes up, keep R1 + Circle pressed. This will change the "Now Loading" screen to bouncing CD's.

Now you can enter any of the following:

1) Change your own plane color: While the bouncing CDs are showing, Up, Down, Left, Right, Up, Down, Left, Right, then R1. Watch for a Namco character at the lower left for confirmation.

2) Change wingman's color: Press R (keep it pressed) and press "Start" 10 times. Look for confirmation again.

3) To play a short hidden game, the rules of which I have no clue, Press Up, Left, Down, and Right. A small character icon will appear in the lower left of the screen. Now the next time there is a loading game, don't press the R1 and circle, and the game will pop up