It's played kinda like TPAM, except it's with the Avatar..
Game can be played in atleast two different ways: Stating and Captioning.
Captioning: Yep, captioning. It's pretty much like caption games, except with the Avatar. It can either be an avatars thoughts or the avatar saying something.
Stating: State something about the avatar above you, simple right?
But then, there comes one teeny tiny little problem: Not everyone has an Avatar and they may choose not to have an Avatar.. Best bet is either improvise or do a different Avatar before that one although i think it would be nice for the improvise option but it is your choice..
Guess that's that.. Let the games begin!

*The Horned King, Maleficent and Diablo both look up and shake their heads as they see no avatars above them..*