I wanted this to be super epic but I think all I ended up doing was make it ridiculously hard to work with. I've never had a project that likes to stutter and crap the bed this hard before - perhaps some optimizations are in order. It's a bit messier than I'd like, but I've already spent a ton of time on this so I don't think it's going to get any better unless I rewrite it from scratch. Maybe I'll do that one day.
Art used:
Ozumii's Battle against a true hero (http://ozumii.deviantart.com/art/Battle-against-a-true-hero-579525215)
WalkingMelonsAAA's
Undyne the Undying - The True Hero (http://walkingmelonsaaa.deviantart.com/art/Undyne-the-Undying-The-True-Hero-582823779)
Download link (enter 0 as price for free download):
https://stonemcknuckle.bandcamp.com/track/battle-against-a-true-hero
Soundcloud link (download limit reached):
https://soundcloud.com/stone-mcknuckle/undertale-battle-against-a-true-hero-remix
Audio react by Brad Grantmyre:
https://www.youtube.com/user/XnSTriLl3rr
Visit mah patreon:
https://www.patreon.com/stonemcknuckle