[One of Mettaton's lesser known developments as a Puca is his luck magic. Luck isn't terribly helpful when he might need it most, as in the case of avoiding kidnap and torture, no, but it manifests in the more mundane of ways. As it happens, this application is for when he wishes to perform a home invasion. (Is it even in play? Questionable.) So normal people lock their doors? Keep their houses well-guarded? That doesn't stop one robotic Puca! There are no buildings he's not allowed to enter, as long as he doesn't think too hard about it. He's welcome everywhere.

(But who is the actual luck for? Is it for Mettaton's entry? Or is it for the homeowner, who won't have his wall forcibly busted down? Fate works in mysterious ways.)

In this case, Emet-Selch will find that the next time he chooses to relocate rooms, Mettaton's decided to make himself at home on a window sill. How did he even get inside? Who knows! Something must have been unlocked. How lucky. He's sprawled across its length with incredible poise, legs bent just right so as to fit while looking unusually comfortable on a surface that shouldn't be so. (It's impressive that he manages at all, in fact.) Behind him, the sun sets, casting his figure in a silhouette. He has his head propped up on a fist and, as soon as Emet-Selch comes into view, he already has his eye trained on him, catching gold in the dimming light. Really, it's impressively choreographed.

Almost like this whole scene is deliberate. It is.]

Oh. Yes. There you are, Emmy-darling. What a surprise to see you, this lovely evening...

[a surprise... to see him in his own house... wow]

We have something to follow up on. Don't we?