all you have to do is beat the limitation tournament then go to mystic land and beat the survival match.
40
beat all tournaments
Press R when next to the duelest you want to duel.
In "Yu-Gi-Oh! 7 Trials to Glory," you can obtain the three Egyptian God cards—Slifer the Sky Dragon, Obelisk the Tormentor, and The Winged Dragon of Ra—by defeating specific opponents in the game. Each God card requires defeating a particular duelist who possesses it, often after meeting certain conditions or challenges. Once you've accomplished this, you can add these powerful cards to your deck for use in duels.
You can duel Mai Valentine after you've beaten 4 times in the weekend tournament. I know because I'm a girl of age 12 and I love Yugioh more than any other anime.
ya go to cheatcc.com
You press R button right next to the person and get ready to duel!
You have to beat the expert by 7 seconds.
Clear the game twice. You only see his eyes which are Red and Dark-Glow Red.
if you are playing with a gameboy just press the R button next to the duelist (even dogs & cats can duel...) and there you have it.
Mind Control was originally a promo in World Championship 2005: 7 Trials to Glory, for the GBA.
Sorry man, they aren't in this game. I was pretty disappointed when I heard It myself!