Impossible Mystery Hyudun-Seijin

ORIGIN:
A tricky alien that enjoys hiding inside mystery stories and leaving false clues to mislead readers, or taking the place of the real murderer (so the actual fictional murderer can get away)

ABILITIES:
Wild Grow: flaps arms wildly and grows to kaiju-size
Identity Confuser Beam: stares at victims and interchanges their appearances with each other
Blow-Up Crania: exposed brain sends bits of itself to attach to, and take over entire buildings