Chopper Attack
Different Views In Chopper Select Screen
Go to a chopper but don't pick it yet. Hit the L button. There should be a screen with statistics and a rotating picture of your chopper. You can now use the analog stick to control the chopper's rotation.
Credit Goes To: WolfyEd@aol.com via IGN 64

Alien Disruptor
Beat level 7 on expert mode to get the alien disruptor.
Credit Goes To: Chris (parakeet@webtv.net) via IGN 64


 Different Views
 Alien Disruptor
 Level Select
 Cheat Menu
 Presidential
 Bailout

 Super Choppers
Level Select
At the "Press Start" screen, press C-Up seven times.

Cheat Menu
When "Press Start" appears on the opening screen, hold Z and press Right, Left, Up, Down, A, B, Start.
Credit Goes To: Jared (NormalJON@Aol.com) via IGN 64

Presidential Bailout
While playing, press Z + C-Up + C-Down, then launch a homing cluster at your opponent. If it hits, you will see the president jump out of the plane.
Credit Goes To: Gustove Bottes (Allo@Cpasde.tesaffaires) via IGN 64

Super Choppers
When you go to the main menu screen. Before you go to the chopper select screen, hold: L, R, and Z and press start.
Credit Goes To: Don Fields via IGN 64