Vigilante 8 cheats and cheat codes for Nintendo 64

Enter the following codes as passwords:

All vehicles available: Enter "GANGS_UNLOCKED"
Disable enemies: Enter "POPULATION_OUT"
Enable expert mode: Enter "I_AM_TOUGH_GUY"
Enable quick firing weapons: Enter "FIRE_NO_LIMITS"
High resolution graphics: Enter "MAX_RESOLUTION"
Invincibility: Enter "LIVING_FOREVER"
Missile power-up: Enter "MISSILE_ATTACK"
Moon gravity: Enter "A_MOON_GETAWAY"
Same vehicle in multi-player mode: Enter "MIX_MATCH_CARS"
Slow-mo mode: Enter "GO_REALLY_SLOW"
Stage select: Enter "LEVEL_SHORTCUT"
Super Dreamland Nintendo 64 exclusive bonus level: Enter "DDDDDDDDDDDDDD"
Unlock all vehicles and levels: Enter "JTBT7CFD1LRMGW"
Watch the ending movies: Enter "LONG_SLIDESHOW"
Y the Alien: Enter "GIMME_DA_ALIEN"

Unlock characters:
Finish Quest mode with the indicated character to unlock 
different characters:

Convoy: Finish Quest mode with Sheila and John Torque.
Dave: Finish Quest mode with Chassey Blue and Slick Clyde.
Molo: Finish Quest mode with Loki and Houston 3.
Sid Burn: Finish Quest mode with Boogie and Beezwax.
Y the Alien: Finish Quest mode with all characters.

Super Dreamland 64 Nintendo 64 exclusive bonus level:
Finish all of "Y" the Alien's missions in "Quest" mode