Battlewheels

Invisible car:

Select the female driver with short blond hair at the character selection screen. Select the green car, and keep this vehicle highlighted. Hold Option 1 and press A and the car will turn black. This car will be invisible to radar and normal vision during game play.

Unlimited ammunition, rapid fire:

Select the male driver with blonde hair at the character selection screen. Select the tan car, and keep this vehicle highlighted. Hold Option 1 and press A and the car will turn red with a black top. Unlimited ammunition and rapid fire weapons will be available during game play.

Paint sprayer:

Press Option 1 + Option 2 while on foot.

Locked view:

Hold B while selecting an alternate view, hold Option 2, then release B. Your view will be locked in this position until B is pressed again.