He will randomly spawn under the desk. When he is here and player hides, player will automatically unhide and get jumpscared by him. The effects that are after jumpscare are the same as other phantoms. You can see him under the desk when not hiding, like a retextured version of Acephalous head when under the desk. Waiting minute is enough to make him dissapear.
He is the same as Goofy head, only phantomic apparence and some wires.