Zouichi -- for lack of a better word -- flails a little as Chell grabs the robot head and tries to pull it off.

"Ow. Isn't there a zipper or buttons or something?" He can't really see the neck of the costume, but he assumes there must be. His robot hands scrabble ineffectively around, trying to locate an appropriate seam, but it's like trying to drink coffee out of a mug while wearing boxing gloves.