Full pause screen
Pause game play and press R2.

Alternate costumes
Highlight a fighter at the character selection screen. Press Circle or X to select their first costume, or Square or Triangle to select a second costume.

Extra mode
Unlock all twenty-two characters.

Fight as Akira
Beat the game using Yugo.

Fight as Quigtao
Beat the game using Yuli.

Fight as Cindy
Beat the game using Douglas.

Fight as Steve
Beat the game using Allen.

Fight as Arthur
Beat the game using Ann.

Fight as Kornelia
Beat the game using Heniz.

Fight as Sessue
Beat the game using Hyoma.

Fight as Mark
Beat the game using David.

Fight as Genya
Beat the game using Saya.

Fight as Jelly/Billy
Beat the game using Kaiya.

Fight as Kazane
Beat the game using Zhou.

Fight as Zhou
Beat the game using all nine starting characters. Then, beat the game under normal mode once more using any one of the nine starting characters.

Fight as Kaiya
Beat the game using all nine starting characters. Then, beat the game under normal mode once more using any bonus character.