[quote=@sakurasan]
[@Obscene Symphony][@Cenco] Can Joker just hover around everywhere? Also, what can Joker touch?
[/quote]

Joker can go pretty much wherever he wants, but he'll be stronger (and likely more comfortable) closer to his human. 

He can also choose whether to be tangible (able to interact with people and the environment) or intangible (able to pass through shit but touch nothing) 

[@Cenco] Think it's fair to say that the further they are from their human, the harder it is to remain tangible? And that they can still physically interact with their human and other guardians regardless of tangibility?