Jojo's Bizarre Adventure: Heritage for the Future Cheats

This code can only be entered by accessing the "Test Menu" on the cabinet, and cannot be done during actual play:
From Test Mode, go to "Configuration", then to "Game"
- Input "Up, Down, Right, Left, Button 1, Button 2, Button 3, Button 4"
- If you hear Dio's "Wryyyyyy", it was successful. Proceed to "Save and Exit", and the new playable characters will be available on the opposite sides of the character selection screen. They consist of:
Shadow Dio, Kan, New Kakyoin, Hol Horse with Voing, Robber Soul, and JoJo.

To fight Death thirteen, you can't lose any matches, and you must use of of the main six characters(Jotaro, Joseph, Avdol, Iggy, Polnareff, Kakyoin. Starting from the first fight, ending with the fifth. The game will say "here comes a new challenger" and then death 13's name will appear.