At the 'Press Start' screen, press the L and R triggers simultaneously. This will unlock all levels and planes.
Beat all 20 Blue Impulse Missions to earn the Exhibition Mode. In this mode, you can select from various new maneuvers.
Complete all 8 Sky Mission Attacks to earn the option to fly a 5 jet formation or 6 jet formation in the Free Flight mode.
Enter TASCAS as your name. Now go to the Options menu and choose the "Special" option for HUD, Cockpit, and Player Assist.
Beat Sky Mission Attacks 1-7. This will unlock Sky Mission Attack 8.
Be a Dolophin:
Beat sky mission 8.
Fly A Car:
Beat sky mission 8 with the dolophin.
Pause the game and press X, Y, A, B, X, X, X, X unpause the game and you should be invincible!
Thanks to Revolution readers Monty, Prototype 35, Riley Gallant, Matt Fluck, kyle, adam leaney and Mackdad!