Board Thread:General Discussion/@comment-32822580-20170810152627/@comment-32480615-20171115114514

Yeah, I guess the important thing is not to confuse Ghosts(the monsters) with ghosts(the souls of dead people). Ghosts are merely incorporeal beings. I assume they were born that way. They become one with a body, becoming fully corporeal, and then the process is one-way. So Mettaton can be killed. Glad Dummy can be killed. Mad Dummy, however, cannot, as he is merely possessing the Dummy. So yeah, if you actually kill Mettaton, then he's dead.

Also, I like to imagine Mettaton is his actual name. Wouldn't be the first time a character's name was very ironic or fitting.