Add Lap Time

During a race, pause the game, then hold B and Select. After, pressing A will increase the "lap timeout" variable: it is one invisible to the player; however, increasing it will allow you to stay on a race as long as you need without automatic retirement.

Note: Incrementing the timeout too high will cause an automatic timeout.

Cheat Mode

At the title screen, press A, B, A, A, A, B, A, A. If done right, a sound will be heard.

Continue Gameplay

After a "Game Over", enter the following code and select "Continue". Press Up(2), Down(2), Left, Right, B, A.

Speed Boost

During gameplay, pause the game and hold Up and A, then unpause - this will boost the car's speed to the maximum, no matter what your prior speed was.

Easy Cash

When you start the game, go to 'create'. From there, make three characters and put them into the group. Take the new characters' gold, weapons, and armor, and give them to the old character, then save. Restart the game and erase the new characters. Repeat until you're filthy rich.