At the start of the game, at mission select.Press A+X+B+L+R and start.f done correctly you will hear a plane crash to comfirm the code.
At the name input screen type in IRA for a name, and put male for gender. This will give you all the planes, including a buggy and dolphin. Also it in the training mission you passed them all at 100/1000
Overcome mission 20 on the hard game setting and you will recieve the plane you just shot down.
Beat all twenty missions to unlock bonus fighters and a Special option with infinite missiles
Many times when you're flying through an area with a lot of buildings or other objects in the way, you'll crash into them. Not anymore. If you are about to fly into something, quickly pause the game and change your view by pressing Y & B at the same time. When you unpause the game, you will fly safely through the building without even a scratch
When you fight the commander on the last level, hit him twice with missiles and then gun him down with machine guns. After you save your game you will be able to buy the commander's plane
Beat the game on hard to earn one more plane in the shopping screen, the EE Lighting.
After each mission save your game. If you lose your plane in the following mission, reload what you saved and you'll have the plane you just lost and the same amount of money.
Shoot down any required aerial target with guns and not missles and the bounty you get for it doubles.
In order to get rid of the replay text during the replays all you need to do is hold down the X and Y buttons. Release the X or Y button and the text will come back up.
Finish the 20 missions using normal difficulty to get a Special setting on the options menu