Dual Virtual Battle Mode
Beat the game with Valgas to unlock 'Dual Virtual Battle Mode'.

Play as the Bosses
Beat the game with each character once to unlock the bosses.

Play as the Final Boss
Beat the game without using any continues. Next, go into the 'collection menu' and go to the 12th page. There will be a picture of the final boss. You may use him in VS Mode only.

Go to: Powerstone Info Page | nGaming Home Page.