To see flies splatter against the windshield (and an occasional bird dropping), drive through Iowa or Indiana in cockpit view!
After you've earned new cars, press C-Up on the Car Selection screen to change your vehicle's color.
After beating the game using the police car, the blue stripe turns to green, to change it back to blue, first go to car selection, then choose police car (the code to get the police car is already on here) then while selecting the police car press DOWN on the control stick. To race car with green, then while holding DOWN press start. you can also change it back to green again by pressing UP on the control stick and start.
Here's a faster way to update cars in a two-player game.
Start a two-player game, and race until you reach Washington D.C. When the DC race begins, press Start and quit the game.
Next, have player #1 return to Washington D.C. and upgrade his car. After player #1 has finished, player #2 should do the same thing. Happy cruising!
In Iowa, after passing the second field of corn you will see a lone pine tree on the left side of the road and a hitchhiker standing beside it. Slowly ram the pine. The woman standing next to it will now be holding a sign.
After a two-player challenge game, the losing player's right front wheel will fall off if you continuously rotate the analog joystick clockwise. This should happen after the car rotates 3-4 times. Talk about driving till the wheels fall off!
To activate a cheat, get a high score on any race. Then, after entering your initials at the "Hot Times" screen, scroll to the bottom of the High Scores list and hold the d-pad diagonal (DOWN-LEFT). A conveyer belt will move; and after about 30 seconds a head will scroll by saying, "I love this job!" During the game, following each checkpoint, press: Brake [three times], Gas, Brake, and Gas.
At the vehicle selection screen, highlight any car except the Ferrari. Then, press up-C + left-C + down-C. The automobile will become a jeep, police car or school bus!
To unlock a hidden track, highlight the corresponding track before entering the code.
Circuit Highlight Code Golden Gate Park US 101 LEFT + left-C + down-C Indiana Beverly Hills LEFT + right-C + up-C San Francisco Grand Canyon LEFT + right-C + down-C
To activate flashing lights and sirens:
(Note: While this cheat only works with the patrol car and school bus, it will enable brake lights on other cars.)