This hack allows Jumbo and Scorpion to be selected in Single Match mode and also allows multiple players to select the same character. Press right from Rasta for Scorpion and right again for Jumbo. If you press left from Jumbo, you will find glitch characters that will freeze the game if selected, so take care not to choose them.
File: Saturday Night Slam Masters (USA).sfc
CRC32: 54161830