Minecraft - The Hunger Games

[SoBootiful]

The only problems I can think of this making is that people would kind of have to put there name down in order to get in to the next game.

And then there's would also be a problem say if someone left the game mid-tournament or after dieing and then new people might join and that would mess up the whole thing.
I don't know how it would work on a public server which is what I was hoping everyone to suggest >_>