[Perhaps not as effective as the usual, but Mettaton appreciates it all the same, and his incorporeal form manages not to give, so he's clearly starting to get a better hold on his magic.]

Any friend of yours is a friend of mine...but I wouldn't have thought you so trusting of others with that which represents you. Clu must be very important.

[He still doesn't get how the identity disk came about, but here in space, there's not much he does fully understand. Maybe one day he'll ask more about it. But what he does know is that the disk fully represents Asriel and is a physical record of his being.]