Finish Vs. mode with out continuing and not losing one round. After you beat the Sorceress you will play against the black and white Jester/Jailer
At the character select screen, put the marker on the Fool and tap down, on the Magician and tap down, continue this with the High Priestess, Chariot, Justice, Sorceress, and World (the Roman numerals above each small picture gives the order. As soon as you tap down on World, three characters will appear, Devil, Strength, and Empress.