Unlock Unlimited Missiles & Options
Finish the 20 missions using normal difficulty to get a Special setting on the options menu
Get Full Replay Screen
To remove extra text hold X + Y
Get More Money
On airborne targets you must use guns instead of missiles to get 2x money
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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
A Wad of Cash
When you are in mission select if you have 2 or more missions do them over again as much as you like.Sooner or later you'll have a wad of cash to buy alot of planes!
All planes, all training done
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
Beat all twenty missions in "Easy" difficulty setting and wait for credits to end. Then save the game. Go to options and there should be an option that says "Special". When highlighted, you can turn it off or on.
Get Commander's Jet on Very Easy Mode
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 planeqWhen 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
Get EE Lightning and S-37
To get the EE Lightning plane, contrary to what Sega.com has to say, just shoot it down using only guns in the third mission to recieve it. It doesn't matter what difficulty it's on, either.
Also, to get the S-37 Berkut, shoot it down with guns on the mission it appears.