I'm not sure... I mean, I don't think a warrior's ever gone to another world before... but it's theoretically possible, and I'm not sure if the game runners would think if everyone else dies, then it's their fault they couldn't get to me, or if they would think the playing field needs to be leveled because I'm somehow cheating. All I know is the rules of this year's Taisen say the winner has to collect all 12 gems.