Street Fighter character E. Honda makes a cameo appareance in the background of the stage. He appears in the crowd in middle of the arena.

Street Fighter character Chun-Li appears in the crowd in Saturday Night Slam Masters. She can be seen at the left side, next to the ring entrance.

When finishing the game with Alexander The Grater without any continues, the ending dialogue reads "Hold on there Ol'hoss, I ain't never wrestled a dry Piece of Beef Jerky before! I can't grind ya so".
The last line is supposed to read "I's gotta chew ya apart!", but it gets cut off.