Beat the Master Challenge and you will be able to play as the Master!
Beat all 100 characters in Survival mode to earn the Joker.
Ushi the Clown
Stay alive in Rodeo Mode for 1 minute or more to earn the ability to play as Ushi.
Robert the Robot
Beat all the fighters in less than 1 minute total on the Fastest Mode to gain Robert.
Rapidly tap A or B after defeating your opponent.
Press R when selecting a character.
View gained skill
Press C-Left, C-Right, C-Up, or C-Down before selecting a character.