Clean Replay Screen:
To get rid of the ''REPLAY'', hold X+Y. Easy.

Unlockables:
Bonus Aircraft - Beat all 20 missions to unlock the Sea Harrier, the AV-8B Harrier II, the F/A-18C Hornet, the F-15E Strike Eagle, the Su-27B Flanker, the Su-34 Platypus, the S-37 Berkut, and the MiG-1.44 MFI

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

Special option - Complete all the missions in the normal setting. You can now choose to play in ''special'' mode by choosing it from the options menu.

Unlockables:
MiG-21 Fishbed - Complete Mission
1 Kfir C.7 - Complete Mission 1
F-4E Phantom II - Complete Mission 2
Mirage 2000 - Complete Mission 2
MiG-31 Foxhound - Complete Mission 3
F-20 Tigershark - Complete Mission 3
MiG-29 Fulcrum - Complete Mission 4
F-16 Fighting Falcon - Complete Mission 4
F/A-18E Super Hornet - Complete Mission 5
Tornado F3 - Complete Mission 6
A-10 Thunderbolt II - Complete Mission 7
F-14D Tomcat - Complete Mission 8
F-117A Nighthawk (Stealth) - Complete Mission 9
F-15S/MT Active - Complete Mission 9
JAS 39 Gripen - Complete Mission 10
Rafale - Complete Mission 11
EF2000 Typhoon - Complete Mission 12
Su-37 Flanker - Complete Mission 13
YF-23 Blackwidow (Stealth) - Complete Mission 14
F-22 Raptor (Stealth) - Complete Mission 15
JSF X-32 (Stealth) - Complete Mission 16

Special Unlockables:
Sea Harrier - Complete the game on any difficulty
AV-8B Harrier II - Complete the game on any difficulty
F/A-18C Hornet - Complete the game on any difficulty
F-15E Strike Eagle - Complete the game on any difficulty
Su-27B Flanker - Complete the game on any difficulty
Su-34 Platypus - Complete the game on any difficulty
S-37 Berkut (Stealth) - Complete the game on any difficulty
MiG-1.44 MFI - Complete the game on Normal
E.E. Lightning/F6 - Complete the game on Hard

New Game +
After you complete the game on any difficulty watch the ending and you will get the option to save. Save your game and load it up and you will have the airplanes you bought in your previous game, everything will be unlocked, and you can start again from mission 1.

More money:
Shoot down any required aerial target with guns and not missles and the bounty you get for it doubles.

Pass through objects:
Pause the game before your plane hits an object , then hit B + Y to chance the camera angle. Then resume the game.