Art of Fighting - VCON/Cheats

From WikiCheats

Unlockable Characters

Mr. Big

In the 1 player mode, lose the match to Mr. Big. When you restart the game, Mr. Big will be available in 2-player mode.

Mr. Karate

In the 1 player mode, lose the match to Mr. Karate. When you restart the game, Mr. Karate will be available in 2-player mode.