Press C-Left, C-Right, C-Up, or C-Down before selecting a character.
Complete the game to earn a star. Select "Rodeo" mode. Remain undefeated for at least one minute. Ushi the cow will be available on the character selection screen in two choices of colors.
Complete the game to earn a star. Select "Fastest" mode. Defeat all fighters in less then one minute. Robert the robot will be available on the character selection screen.
Complete the game to earn a star. Select "Master Challenge" mode and defeat all opponents. The Master will be available on the character selection screen.
Complete the game to earn a star. Select "Survival" mode. Defeat all one hundred characters. The Joker will be available on the character selection screen.
Complete the game under the easy difficulty setting. Note: This character is named Eyvokan in the Japanese version of the game.
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.
End a match with your opponent having very little energy remaining, or standing next to a ledge. Stand very close to your opponent during the victory pose to have it hit them, causing a kill or fall.
Complete Master Challenge and win or lose. Alternatively, have a saved player on the memory paks in controllers one and two. Then enter a two player battle in win or lose mode. Defeat the other player and the beaten player will lose an ability. The winning player can then gain the 9th skill.