User blog comment:JKGame/Actual Rap Battles News with Greg Heffley/@comment-34129479-20180715030501

Spike (Ape Escape) vs Spike (Cowboy Bebop) vs Spike (MLP) (Or Spyro vs Spike as an alternative)

Princess Celestia & Twilight Sparkle vs Lady Palutena & Pit (Kid Icarus)

Princess Luna or Discord vs Bill Cipher (Gravity Falls)

Big Mac vs Little Mac (Punch Out)

Fluttershy vs Snow White

Tempest Shadow vs Galvatron (Transformers)

The Cutie Mark Crusaders vs The Powerpuff Girls

and the lesbians; Lyra & Bon Bon vs Ruby & Saphire (Steven Universe)