Nintendo 64 Codes
JTBT7CFD1LRMGW
Unlock all arenas/characters (inc. Y the Alien).
LIVING_FOREVER
Invincibility.
LONG_SLIDESHOW
Show all the end sequences in one sitting.
GIMME_DA_ALIEN
Unlocks 'Y the Alien'.
GANGS_UNLOCKED
Unlocks all vehicles in the game, bar 'Y'.
LEVEL_SHORTCUT
Unlocks all the hidden levels.
A_MOON_GETAWAY
With reduced gravity, cars spend longer in the air.
GO_REALLY_SLOW
Slow motion mode.
MIX_MATCH_CARS
You can choose more than one of the same vehicle in multiplayer mode.
POPULATION_OUT
Lets you drive about the levels with no enemies at all.
FIRE_NO_LIMITS
Switches off the delay when fireing weapons, so you can let rip with them as fast as you want.
MISSILE_ATTACK
Interceptor missiles cause more damage and track targets better.
I_AM_TOUGH_GUY
Enables Ultra high difficulty level.
MAX_RESOLUTION
Switches on the high res version of the game (n.b. may cause slowdown.)