While technically defined as an Omega-level mutant, Bobby Drake has never really cared to realize his full potential. He has been shown to be able to morph his body at will and can regenerate provided his head remains intact.
Kitty Pryde can phase through whatever object at will (some metals have proven to be harmful in the phasing process) carrying whatever or whoever she desires, can disrupt electronic devices, walk on air molecules, and has been trained as an expert fighter.
Scene: In the mansion, Kitty and Bobby just broke up and she gets pissed and wants to kill him. Go.