User blog comment:JaphethMario/Ben and Gwen vs Dipper and Mabel. Japheth's Fiction Rap Battles Season 2 Ep.6/@comment-27286780-20160514132307

This was pretty good, but some of it didn't rhyme. The Pines won it.

"collab with Sonic The Hedgehog" Sonic collabed with shit once when making Rise of Lyric and 06, but shit isn't fictional so I'm geussing either Mario, Megaman or both.