First enable the Cheat option (From Start Game menu: Hold L+Y+X, press R). Then select the Cheats option. Highlight the respective cheat and enter its code clean and smoothly; not too fast.
Code
Effect
press A,A,X,X,L,L, Hold R, press Y, (release R), Hold L, press A
ALL CARS
Y, press X,A,L,R, (release Y), Hold X, press A, (release X), press Y,Y
ALL PARTS
Hold A+Y, press R, (release A+Y), Hold Y+X, press L, (release Y+X), press A,A,X,X, Hold L+R, press Y
ALL TRACKS
press A,L,Y,R,X, Hold L+R, press A,Y
AUTO ABORT
Hold A, press L,R,L,R, (release A), press Y,Y,Y
BATTLE PAINT SHOP
press X,X,X, Hold L+Y+A, press R
BRAKES
Hold L+R+Y, press A,X, (release L+R+Y), press A,X
CAR MINES
X, press R,L, (release X), press Y, Hold A, press Y, (release A), press Y
CONE MINES
Hold L+A, press X,Y, (release L+A), Hold R+A, press X,Y
DEMOLITION BATTLE
Hold L, press Y, (release L), Hold A, press Y, (release A), Hold X, press Y, (release X), Hold R, press Y
FOG COLOR
Hold L, press A,A,X, (release L), Hold R, press A,A,X
FRAME SCALE
Hold L+Y, press X,A, (release L+Y), Hold R, press A,Y,X
INVINCIBLE
Hold L, press Y, (release L), Hold R, press X, (release R), press A, Hold L+R, press Y, (release L+R), press X,X,X
INVISIBLE CAR
press R,L,X,Y,A,A,Y,X, Hold L+R, press A
INVISIBLE TRACK
Hold A, press Y,Y,X, (release A), press L,R
MASS
Hold L+A, press Y,X, (release L+A), Hold R+A, press Y,X
RANDOM WEAPONS
press R,R,L,L,A,Y,X
RESURRECT IN PLACE
Hold X, press R,L,R,L, (release X), Hold Y, press R,L,R,L
SUICIDE MODE
Hold X+R, press L, (release X+R), Hold A, press Y, (release A), press A,A,A
SUPER SPEED
Hold R, press Y,Y,Y, (release R), Hold L, press A,A,X
SUPER TIRES
press Y,X,A,Y,X,A, Hold R, press A
TIRE SCALING
Hold L+R, press Y, (release L+R), press A,Y,X, Hold L+R, press Y
Midway Arcade Treasures 3 CODES
404
