A Pokemon Battle Royale would be fun, though. Something like the Pyramid Challenge in the Hoenn Battle Frontier, you scavange in the dark for Pokemon and items, and if you find another player, you HAVE to fight them. The last 10 fight in a regular tournament.
Also, I'm sure Red Dead will have some sort of Battle Royale mode, akin to "Gold Fever". You have to fight the other outlaws to find and protect an old Spanish treasure or something like that.
You know it deserves the GOTY.