Enter one of the following as a password.

     All cars - GANGS_UNLOCKED Note: This does not unlock the UFO. 
     Y The Alien - GIMME_DA_ALIEN 
     All characters and levels - JTBT7CFD1LRMGW 
     Same vehicle in multi-player mode - MIX_MATCH_CARS 
     Ultra-high resolution mode - MAX_RESOLUTION Note: This code requires the memory
     expansion pak. 
     Interceptor Missile power-up - MISSILE_ATTACK 
     Invincibility - LIVING_FOREVER 
     Big wheels - MONSTER_WHEELS 
     Quick firing weapons - FIRE_NO_LIMITS 
     Low gravity - A_MOON_GETAWAY 
     No enemies - POPULATION_OUT 
     Slow motion mode - GO_REALLY_SLOW 
     Expert mode - I_AM_TOUGH_GUY 
     Level select - LEVEL_SHORTCUT 
     View ending sequences - LONG_SLIDESHOW