Special options
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.
Bonus fighters
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, and Su-34 Platypus. Successfully complete the game under the hard difficulty setting to unlock the EE Lighting. Successfully complete the game under the normal difficulty setting to unlock the MiG-1.44 MFI. Successfully complete the game under the easy difficulty setting to unlock the S-37 Berkut.