Yu-gi-oh is pretty damned weird when placed under any form of scrutiny. Leaving aside the whole Egyptian gods, ancient prophecies, evil spirits, reincarnated pharaohs and the like, you have a society that has almost completely based itself around a children's card game.
I seem to recall one section of one of the DS handheld games has your character thrown in prison, only to be released because you beat the warden in said card game. The warden takes the somewhat reasonable stance of "Just because you beat me doesn't mean I'm going to release you." only to have his boss say in effect: "No, fair is fair. Let this potentially dangerous in mate out of prison."
And let's not forget...
CARD GAMES ON MOTORCYCLES!
I seem to recall one section of one of the DS handheld games has your character thrown in prison, only to be released because you beat the warden in said card game. The warden takes the somewhat reasonable stance of "Just because you beat me doesn't mean I'm going to release you." only to have his boss say in effect: "No, fair is fair. Let this potentially dangerous in mate out of prison."
And let's not forget...
CARD GAMES ON MOTORCYCLES!