Mettaton is a character from Undertale.

Fanon ideas so far

Possible opponents

  • Hatsune Miku (Vocaliod)
  • Geno (Super Mario Bros.)
  • Waluigi (Super Mario Bros.)
  • R.O.B. (Nintendo)
  • Nonon Jakuzure (Kill La Kill)
  • Penny Polendina (RWBY)
  • Ulala (Space Channel 5)
  • Genos (One Punch Man)
  • Gruntilda (Banjo-Kazooie)

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