Play as Dizzy
Defeat the Dizzy's dare devil version in survival mode to unlock him. Alternately, defeat Dizzy on stage 10 in arcade mode.

Play as Testament
Defeat Testament's dare devil version in survival mode to unlock Testament. Alternately, defeat Testament in stage 9 and Dizzy on stage 10 in arcade mode.

Extra mode
Defeat a fighter's dare devil version in survival mode to unlock extra mode for that fighter. The fighter's extra version is able to execute new moves and supers.

Original mode
Successfully complete the game in survival mode to unlock the "Original Mode" selection at the options screen.

Alternate costumes
At the character selection screen, press Start or Select when choosing a fighter