Outtrigger

Sound and movie test options:
Finish mission mode in novice, intermediate, and advanced mode

Free editing option:
Finish arcade mode in advanced mode with Neil or Nereshkova

Change outfits colors:
Finish arcade mode on the intermediate or advanced mode

Unlock Bonuses:
Finish the indicated stages to unlock bonuses:

Level - Difficulty - Bonus
3 - Advanced mode - Pipe Bomb Launcher
3 - Intermediate mode - Bonus stage
4 - Advanced mode - Icon Bomb
5 - Advanced mode - Play as Proofer
5 - Intermediate mode - Play as Scarpin
7 - Advanced mode - Bonus stage
8 - Advanced mode - DICW weapon
8 - Novice mode - Play as Commander
9 - Advanced mode - Bonus stage
10 - Advanced mode - Play as, Enemy B.A.T. weapon
11 - Advanced mode - PSG-1 weapon
11 - Intermediate mode - Play as Siba
12 - Advanced mode - Bonus stage
12 - Intermediate mode - Machine Gun
13 - Advanced mode - SPAS12 weapon
14 - Advanced mode - Bonus stage
14 - Novice mode - Play as Shinobi
15 - Advanced mode - Play as Dr. K, - Missile 2 and Salamander
15 - Novice mode - Bonus stage

Ooga Booga

Cheat mode: Enter "IGOTNOSKILLZ

All tribal trial missions: Enter "IMINFRANCE"
Birds: Enter "AVIARY"
Boarpolo: Enter "TRICKSHOT"
Boars: Enter "PORKCHOP"
Fireball spell: Enter "STRIKEAMATCH"
Homing head spell: Enter "DODGETHIS"
Level 2 masks: Enter "ICHEAT"
Level 3 masks: Enter "THEREFOREIAM"
Level 4 masks: Enter "SOVERYVERY"
Level 5 masks: Enter "WEAKANDSAD"
Lightning bolt spell: Enter "KILOWATTS"
Lightning cloud spell: Enter "STORMYWEATHER"
Mine spell: Enter "KABOOM"
Rodeo: Enter "SADDLEUP"
Tikis: Enter "IDOLATRY"
Tornado spell: Enter "BLOWHARD"
Unlock Abe: Enter "AHOUSEDIVIDED"
Unlock Death: Enter "SALMONMOUSE"
Unlock Disco Dude: Enter "DOTHEHUSTLE"
Unlock Dwarf: Enter "HEIGHTCHALLENGED"
Unlock Leprechaun: Enter "BLARNEYSTONE"
Unlock Pirate: Enter "WAREZWRONG"
Unlock Super Guy: Enter "SECRETIDENTITY"
View tribal trial completed sequence: Enter "STRENGTHNO"

Control victory pose:
Press A, B, X, or Y at the game ranking screen