Two-Player Mode: Plug in two controllers and at the title screen, simultaneously press and hold R2 and Select on both controllers. A new option, "Two Player Vs." appears under the Options. Now you and a friend can try and shoot each other down via an overhead view.

The following codes are entered while the game is paused.

Maximum Fuel and Armor: Press Select, L2, Select, R2, Triangle, Triangle, Triangle, [Circle].

Maximum Weapons: Press Select, L2, Select, R2, L1, L2, R1, R2. Cycle Through Gun Modes: Press Select, L2, Select, R2, Select, Select, Select.

Summon Wingman: Press Select, L2, Select, R2, Square, Square, Square, Circle.

"Perfect" Pause: Press Select, L2, Select, R2, Down, R1, R2.

Mission Skip: Press Select, L2, Select, R2, Triangle, Triangle, Triangle, Down, Down, Down.

Upgrade Current Weapon: Press Select, L2, Select, R2, L1, L1, R1, R1.