“Hello there! My name is Mettaton!” Mettaton, a little Ghost Monster who was possessing a robot body, happily said to you. “I might look like a robot, but in actually a Ghost Monster possessing a robot body that Alphys and Gaster both built for me!” He said happily, his eyes sparkling with pride. “Would you like a Starfait or a Legendary Hero Sandwich? Starfaits cost 15 Gold and Legendary Heroes are 20 Gold!” He proclaimed.