So I was thinking there could be a new sort of PVP game mode where it starts off as normal, each person gets some armor, weapons, etc. but then as the game continues, to make it more interesting the floor could start disappearing, just a few random blocks every 10 seconds or so, but as the game goes on it would be harder and harder until there is very little left. This could be even more fun with teams of players, and maybe knockback items to push people into the holes.
