Press and hole 1 + 2 + 3 + 7 + 9 + Option when the ''Eye'' appears on the title screen
At the background selection screen, press #.
On the character selection screen, press the following buttons together on the phone pad to unlock the following characters:
During game play pause and press A, B, or C.
Press and hold 1 + 5 + 9 at the title screen. The word ''Fight'' will confirm correct code entry. On the main menu there will now be an accessible turbo option.
At the title screen press 9, 1, 1. The word ''Awesome'' will confirm you entered the code correctly.