Beat the game under the easy difficulty setting.

Beat the game to earn a star. Then, select "Survival" mode. Defeat all one hundred characters. Now the Joker will be available on the character selection screen.

Beat the game to earn a star. Then, select "Master Challenge" mode and defeat all opponents. Now the Master will be available on the character selection screen.

Beat the game to earn a star. Then, select "Fastest" mode. Defeat all fighters in less then one minute. Now Robert the robot will be available on the character selection screen.

Beat the game to earn a star. Then, select "Rodeo" mode. Remain undefeated for at least one minute. Now Ushi the cow will be available on the character selection screen in two choices of colors.

Rapidly tap A or B after defeating your opponent.

Before selecting a character, press C-Left, C-Right, C-Up, or C-Down.

Quick health refill

Step far from your opponent when your health meter is low. Then, hold High Attack + Low Attack. The health meter of your fighter will refill very quickly. Note: A full health meter is no guarantee of winning a match; a knockdown move against your character can still end the match quickly and your character can be attacked during the energy refill.

Easy victory against the Joker (Master Challenge mode)

Use a knock down attack with any character at the start of each round.