alpha cheats

Aluminum BatSelect Cracker Jack, then hold Up + Square + Circle + R1 + R2 until the match starts
Bonus Barrel GameHighlight practice at the mode selection menu, then press Start, Up, Up, Right, Up, Right, Up, Start. Then go into practice mode.
Hidden CharactersHighlight practice at the mode select screen and press Select, Up, Right, Down, Right, Select

UnlockableHow to Unlock
Ending CreditsBeat arcade mode with all characters (including secret). You can now view the credits in the ending collection (option menu)
Extra OptionsBeat Arcade mode at the hardest difficulty setting. You can see this new option in the option menu.