Play as Robert the Robot-Go into the Fastest Mode and beat all the fighters in less than one minute (combined time). You will now be able to play as Robert.Note: You may have to use a character with a star to get this trick to work. You can earn your fighter a star by beating the game.

Play as Ushi the Cow-Enter the Rodeo Mode and stay alive for one minute (or more), and you will be able to select the Cow as a playable character. Two colors available: brown and classic cow. Note: You may have to use a character with a star to get this trick to work. You can earn your fighter a star by beating the game.

Play as the Joker-This one's tough: Beat all 100 characters inthe Survival Mode, and the Joker will become a playable character. Good luck.Note: You may have to use a character with a star to get this trick to work. You can earn your fighter a star by beating the game.Note: You may have to use a character with a star to get this trick to work. You can earn your fighter a star by beating the game.

Play as the Master-Enter the Master Challenge with any character, beat everyone, and you will be able to select the Master as a playable character.