[For an instant, the projected face over Mettaton's own pales again. Ha. Right. That's ridiculous. That's not what's going on with his body at all. He's just a robot... Nothing else.

...

He flips his hair, forcing himself to laugh it off.]

I was kidding, honeysuckle. Of course you're not a ghost. You interact with people, don't you? Feel things? [Not to mention that even appearance-wise, he's nothing like any spirits back home. Keats couldn't be a ghost.]

...So. You tell me why you hate your name so much.