User blog comment:ShadowKaras/Season 3 Battle Guessing!/@comment-27631411-20160409120431/@comment-25968390-20160409122711

Mettaton vs Robo-Ky? He has at least one version in ISUKA, and a Non-Canon version that is highly successful by MUGEN staff long ago... The creator of Mk-III also made Robo-Jam, which is what it says on the box...