You can choose the same character with this glitch. I´m not really that good to explain, but here´s a link: http://www.youtube.com/watch?v=k98dGOoDZGM . And if you do this glitch and you finish a grand prix (on VS.) with 4 same characters, and if you ask me it looks really stupid. And if you use more than one Wario, Bowser, Dry Bowser you will see your Mii´s head on top of their heads after you finish a Grand prix(on VS.). If you use King Boo with this glitch the game will freeze(It happened to me).