Enter the following as Passwords:
A_MOON_GETAWAY- Low gravity.
FIRE_NO_LIMITS- Rapid firing.
GANGS_UNLOCKED- All vehicles.
GIMME_DA_ALIEN- Y the Alien.
GO_REALLY_SLOW- Slow motion.
I_AM_TOUGH_GUY- Expert mode.
JTBT7CFD1LRMGW- All levels and characters.
LEVEL_SHORTCUT- Level select.
LIVING_FOREVER- Invincible.
LONG_SLIDESHOW- View ending sequences.
MAX_RESOLUTION- Ultra-high resolution mode.
MISSILE_ATTACK- Power-up missile.
MIX_MATCH_CARS- Same vehicles in multiplayer.
POPULATION_OUT- No enemies.
Bonus level- Successfully complete all of 'Y' the Alien's missions in "Quest" mode to unlock a Nintendo 64 exclusive bonus level called Super Dreamland 64. Oohh....dreamy.
Special Moves- The codes listed below are in the following order:
Weopon
Special
Button Sequence
Interceptor Missiles (homing)
Halo Decoy
Up, Up, Down, Machine Gun
Afterburner (uses one missile)
Up, Up, Up, Machine Gun
Bull's Eye Rockets
Road Runner
Up, Down, Down, Machine Gun
Stampede (fires in rapid succession)
Up, Down, Up, Machine Gun
Bruiser Cannon
Cow Puncher
Down, Up, Down, Machine Gun
Buckshot (six shells at once)
Down, Up, Up, Machine Gun
Mortar Swivel
Turtle Turnover
Down, Down, Down, Machine Gun
Crater Maker (fires all remaining)
Down, Down, Up, Machine Gun
Roadkill Mines
Bear Hug
Left, Right, Down, Machine Gun
Cactus Patch (fires all remaining)
Left, Right, Up, Machine Gun
Note on performing specials:
-You must have desired weapon in arsenal.
-Weapon doesn't have to be the selected weapon.