fireandsaltedearth said: It’s definitely not attached; there’s an early episode of the anime (the one with the school) that has Pikachu knocking a girl’s Cubone’s helmet around so it can’t see.
Oh, yeah, Giselle’s Cubone in The School of Hard Knocks; that’s right, well remembered. Mmm; well, it’s not physically bonded to the head, then, but I still think it could be something that grows naturally and then sort of breaks off, like losing your baby teeth. Then again, it would be strange for it to work that way, when the helmet seems to fuse with the skull once they evolve into Marowak…
