Mettaton

Ģ̛̭̱͕͇̲̋̽̈͌͢ͅl̴̤̦̹̞̘̪͊̈̈́́͌͒͢͠ą̩̩͙͍̣̬̟͔̹̏̈́̈̈̏̂́͝m̷̖͕̻̥̥̗̑̉̾̎͑͌̊̓͞õ̷̡̡̗̪̱̔͆̈͌̄̀͡͠ừ̶̯̪̯̼̜͓̙̯͉͛̑͋̍̀͆̂͢͠ŗ̸̜̦̦̞̀͊̐͂̃̇ͅ b̸͎͚̳͈͈̟͚͌͐͋̽̔̉͡͠y̸̡̛̛̳̼͈̻͐̆̈̑͑̎͆͟͡ d̨͙̖͇̣̟̮͈̂̂̅̕͘̚͟͠ͅe̵͙̖̞͔̙͎̞̖̮̔̑̌͋̀a̧̠͔̩̪̩̲̜̭͋̂͛̓͂̚t̴̼̣͇̙̰̪̮̒̑͂͘͢͡ͅh̴̨̧̨̺̱̜̝̣̼͓̃́͗͌́́̓͒ b̨̬̙̤͖̗͇̗͉́͆͒̒͘̕͡͡͝ý̶̡̢̢̙̹͙͕̮͎̽́̃̕͜͞ d̺̬͚̼̩͔̭͒̄̄̓̇̓̃̌͘̕͟͟e̷̢̢̤̬̰͎̼̱̝͒̐͐̃̀̎͑̕͢a̸̡̱̰͙͖̘̭̳̱͒͒͐͐͝ț̸̡͙̞͎̎́̐̄͗̍͑͞͝ẖ̵͖͔͕̿̀̀̾̆̑͘͢͟͜͡͠ b̷̞̘͉͔̱̈̈́̿̂̅̑͐͘͟ͅy̯͍̥͈̋̿̾̐͊͟ d̶̢̠̭͓͈̼͈̎̋̐͆̓̋͝è̸̢̺̰̪̙͖̦͈̝̓̌̉͒͡͠a̵̢̼̖̥̹̭͋̔͐̃͗͘ͅt͉͍͓̘͈̃́͑̀͑̃͋̉͐̏͜h̸̨̯̩̼̍̊̔̏̿̓̉͜͞ b̮͙̞̰̤͕̯͕͎̈̽̍͊̔̈̓ỹ̪̰̩͇̦̻͓̟͍̄̾̽͘̚͜ d̷̡̻̟̜̦̘͔̖͎͓̄͑͋́̄͝͝ę̛͓͎͍͙͛̔̿̄͋̈́͘͢͟ͅȁ̶̭̱̞͎̤̱̣̇͂͗́̔̅̌̕t̷̹͙͔̝̳̝̠̿͆́̓̚͡h̯̘̘̭̙̖̓̄̐͊̎͞ͅ b̸̡͉̣͇́͌͆͌̀͊̍̏͜͡y̸̨̥͙̜̦͓͚͚̆̀̇̓̈̿̅̃̑̚͢ d̩̲̩͔̖̠͓̽͐̃̔͗́͒̕͡e̴̩̜͈̣̳̟̎͆̎́̋̓͑̈͘͘ạ̤͉͓̬͉̃͆̚͘͟͠t̨͚̖͈̰̎̌̍̊̉̀̅̐͘͜h̢͕̰͎̳̼͌͌̋̃̔͆͆̌͡ͅ b̡̛̺̼̣̰̬̉̓̅̋̎͌͞y̵̧̡̱̺̳̟̟̘̅̆̊̆̋̑̒̂͞͞ͅ ḑ̶͇̞̬̝̣̄̄̐̈́̍͟͟͞͞ë̴̛̤͎͍̹̝̍̔̾̅͋͛͡a̧̢̛̻͔̣͈̻͖͑̿͑̿͒̎̽̍͘t̷̡̢̠̺͎͌̔̏͒̃́̕͟͝͝͝h̶̨̪͖͖͙̗̏͗̐͌̏͟ b̴͉̩̦̙͉̫̘̬̲͕̆́͒̇͘ȳ̳̦̩͇̗̾͐̍͒̌͑ d͉̫̥̫̼̺̑͊͂̅̈e̥̗̺̙̮̯̰̍̓͆̿͜͞ͅȁ̶̛̜̦̘͖̩͕̀͆͊̿͞ṭ̢̛̠͇͚̱̞͇͙̰̂̈́̓h̢̤̗̲̫̬̼̙̠̳̓̾̌̋̏̍̿͠ b̷̧̲͕̫͋̔̌̿̅̊̕͟y̲̗͔̻̲̗̯̱̰̟͆̏̈͗̈̚͘͠ d̴̼͚̠̝̊̏̐̍̐̒͘͡ͅe̢͔̝̳̭͒̿̃͆̄͆͗͟͝å̷̧̨̗̗̫̣̿́͆̚t̵̢̧̹̗̜̖̦́̈́͒͌̎̑̚͜͢͞ͅḩ̖̼̤̩̍̏̊̀͊͌̌̒̂͡ b̧̨̳̤͈̰͚̹̽̈́͊̒͋͗͆͘͜͞ͅŷ̵̧̮̖̳̌̈̊̒͊̍̿͘͜ d͔̮̠̪̣͎̯͈͙͚̈̊̃̔͋͂͆͡e̢̩͔̗̞̼͉̹̓̽̽͌̔̋͜͢͝a̦̗͎̜̮̪̳͛͑̓͌͑̓̎͡t̫̪͔̯͇̝̝̬̾̾̾̈̅͋̋̃̏̑ͅh̹̘͙̪̤̰̺́̀́͘͟͡ ḇ̴͚̦̯̮͈̃͋̓̓̆y̷̱̦͉̣̜̎̐̂̽͡ d̡̥̮͔͓̲̜̻̭͂͆͛͊̄́̆̕͘͝e̻̟͚̘̼͚͓͒̂͊͛́͛͋̆͡ā̸̢̦̦͇͉̠̭̘̀͆͋̕ţ̴̛̮̮̼̝̞̝̎͒͂̎̆͗͌͝ͅh̨̢̝̹͖͍̘̹́͛̈͋̾͌̐͐̕̕ͅ b̡̡̤͉̘̜̬͔̱̀̿̂̐̀̊͆̈̕ͅy̪̯͍̰̫̼̫̳͇̎͗̽̌̋͋̾͡ ḏ̴͍̥̬̳͈̲̪͙̒̉̓̈͗͌̔̚͝e̸̢̬͍̫͑̒̐͛̃̈́͒̃͘ͅa̷̧̳̪̣͕̱͙̔̆̊̑̒̓͜͞͝͞͡ṯ̸̝̳͓͎̀͂̓̀̀̓͛̅h̡̢̗͙̽̓̋̆̃̔̚͟͞ b̷̨̢͇̖͛̆̈̔̊͜y̭̻̗̺̗͙̗̰̻͚͛̒̽̇͝ ḍ̵̨͖̭̳̩͈̘̐̔͒̈͌̔̀̈͞e̡̲̭̘̺̫̖̙͓̓͌̄̽͌́͜a̴̰͙̜̣͈͙͚̿̄̓̿̇̎̅͘͢͡t̶̡̞̳̺͉̞̤̼̩͈̃̒͐͂̈̊͘h̴̻̫̗͓͖̘͂̈̀̄́̾̍̚̕͢ b̷̘̯̙̖͆́͋̀͜͜͠ͅỳ̨̡͕͎̟̺͍̀̎̄́̔͜͞ d̵̢̨̛̛̩̗̳͇͈͒̆̽͟e̴̺̠̗̖̺͚͚̓̄̽́͊́a̴̡̡͈̗͈͍͈̹̜͋͑̎̐͘t̛͕̺̭̙̻̹̠̝̃́̌̃͛̌͢͢͞h̶̯̭͙͈͙̄̾̿̈́͛̋̚͢ b̲̻͈̯̯͚̝̗̼̏́͑̃̑̈͐̾ͅy̡̟̜̹̘̻͆͆̅̀͗ d̵̡̠̫̙͙͐͑̀̾͛̓͟ę̛̦̬̖̩͕͆̅̌̆͌͢a̶̡̦̻̦̭̪̘͎̍͋̐̈̿́̊̒͜͝t̡̡͎͉͇̩͒̇͛̓̎͂ḧ̴̛̘̭̬͍̖̦́̍̋͞ b͕͍͍̙̬̪̼̼͛̅̋̐̓́̔̚͜ỵ̵̢̛̹̘͇̬̉̾͒͢͝ d̝̦̱͖̣̺̗͈̹͓̿͒̓̀̿ẽ̲̹͚̟̥̼̊̌̋̆́ả̧̡̝̜̣͚̪͆̌̆̓̓̈́̕͘͟͞t̸̜̺̱͕̬̙͖̏͊͐͌̈͜h̢̺̫̹͔͓̤͐̐̎̚͝

Appearance
Mettaton has melting legs, Multiple arms, A giant mouth on the side of his face (Could also be something else, But most likely a mouth.) And multiple hearts on his chest.