(PFP by yellowdraws on Tumblr) Bratty and Catty are a pair of vendors that can be found in an alley to the right of the MTT Resort. They are best friends, often saying the same lines or finishing sentences for each other (usually in the American valley-girl dialect), and both are big fans of Mettaton. They have several wares found from the Garbage Dump, including the Mystery Key. They act like stereotypical teens, following the newest fad (e.g., Mettaton or Asgore's plan). Very unserious.