"I'd say the AI is doing a great job of keeping the prisoners, if nothing else," Mettaton said wryly. It's not an incorrect assumption. D-E-L has just been hiding them quite well.

"Hmm. I suppose we ought to be on our way before any of those 'zombie' creatures show up though? I'm not interested in running into more trouble than I bargained for."

He had, after all, only come here to salvage! Not to fight!! Who was going to watch the violence even if he did participate?! Without a full audience, there's no fun in it.