Full pause screen
Pause game play, then press [X] + [Y].
Extra Options
Successfully complete arcade mode as any character under any difficulty setting. An "Extra Options" selection will be available.
Heavy chain gun
Successfully complete the game using any two characters.
Shield
Successfully complete the game using any four characters.
Ayame's mini-game
Successfully complete the game using any six characters.
Gunrock's mini-game
Successfully complete the game using any seven characters.
Fight as Kraken
Successfully complete the game with all eight characters to unlock Kraken.
Fight as Mutant Fusion (Final) Valgas
Unlock Valgas, then successfully complete the game with any character without using continues under any difficulty setting. Enter the page 12 of the Power Stone Collection to see Final Valgas. Note: Final Valgas may only be selected in versus mode, by only one player per match.
Dual Virtua battle mode
Unlock Kraken as a playable character and use him to successfully complete the game. This mode will be unlocked on page 6 in the Power Stone Collection. This mode allows a versus mode game to be played with the Virtua battle mode camera angle on each part of the split screen.
Scrap book
Accumulate 1000 or more coins in the VMS mini-games to unlock a scrap book (art gallery) option on page 13 of the Power Stone Collection.
Sound test
Accumulate 2000 or more coins in the VMS mini-games to unlock a sound test (sound gallery) option on page 25 of the Power Stone Collection.
View ending sequences
Successfully complete the game with any character to access page 14 of the Power Stone Collection. This may be used to view the endings of any character that has completed the game or the game's credits.
No damage
Enable "Extra Options" code. Enter the extra options screen and set "Transformation Damage" to "0%". Start another match, collect three gems, and transform. Do not use any regular attacks on your opponent after transforming. Instead, throw objects to keep from getting damage.