PC / Computer - Undertale - Mettaton - The Spriters Resource
Semi Frequent Undertale Facts on Twitter: "* During Mettaton's second fight, if you keep NOT pressing the yellow button from the phone Mettaton will make very specific remarks, (taking in mind Mettaton's
PC / Computer - Undertale - Mettaton EX - The Spriters Resource
Steam Community :: Guide :: How to Defeat Mettaton Neo
Boss Guide - Undertale Wiki Guide - IGN
Mettaton's Pacifist Boss Battle | Wiki | Undertale Amino