Select level
Hold [Option] and start a game to choose any level from 1 to 10.

Bonus level
Enable Select level code. Then enter "0" at the level select menu. You will play the secret level Bridge.

Get a Fast Car
To get a fast car, use the select level cheat (Hold down option when you click start) it should ask for level and vehicle number. Where it says vehicle#, put in 201 for a small, fast car.

Various Car Cheats
After using the chose level cheat, put any of these numbers in for a different car or object. 147, 230, 139, 140, 141, 142, 143, 145, 149, 129, 246, 203, 204, 205, 207, 222, 211, 193, or 209.