Tried Chipp. To wall cling just jump near the wall and press forward and back really fast. From there you just press one of 4 buttons (no D) to get follow ups like teleport throw, 2 different striking attacks or projectile.
Air taunt is gone but maybe they made it a new move. I'm unsure.i also tried to go into IK mode and nothing happened so either they changed IK conditions or its just not in this test version.