Successfully complete all twenty missions to unlock the following fighters: Sea Harrier, AV-8B Harrier II, F/A-18C Hornet, F-15E Strike Eagle, Su-27B Flanker, Su-34 Platypus, S-37 Berkut, MiG-1.44 MFI.

Beat the game on hard to earn one more plane in the shopping screen, the EE Lighting.

During level 1, on any difficulty shoot down the 3 targets. Make sure to use guns not missiles. It gives 135,000 per plane versus the usual 60 or so thousand.

Successfully complete all twenty missions under the normal difficulty setting to unlock a "Special" selection on the options menu. The new options allow unlimited missiles and the HUD display to be removed.