what would be cool was if skull kid caused the moon to appear at the top of the screen, slowly descending, and everyone (except for the guy who spawned it of course) would have to jump up and hit it repeatedly to keep it from reaching land to keep it from EXPLODING and killing everyone except for the guy who spawned it
but like the person who spawned it doesn't really have to do anything but keep the other 3 players from stopping the moon from touching down
beating the moon up long enough would cause it to retreat back off the top of the screen