1) Go to the options menu
2) set the KO count to 1
3) Keep it on the Medium Difficulty setting
4) Play as Mama Tua
5) Use her Forward, Forward+HR(High Right) punch to inflict heavy Damage to your opponents.
6) Setting the difficulty on Easy, triggers the Mama Tua fight at the end of the game, J.R. Flurry on Medium, and Joey T. on Hard difficulty.
7) You now finished the game in under 4 minutes.