Is their any 3d tricks that can be done with a flying wing? Im mostly interested in hovering, I would just go try it but I figure I better ask if its even possible before I try.

I know a good deal of rudder action is needed to keep the plane pointing striaght up but since flying wings dont have rudders I dont know if its possible to do.

If it's a pusher wing like the Zagi, it can't be done. There is no airflow over the control surfaces in hover to maintain the hover. A tractor powered wing may stand a chance but won't really be controllable since there is no rudder. PBFs harrier well without a rudder but won't maintain a hover.
Matt