I.M.P. Theme, but it's Super Smash Bros. Ultimate
Anyone like Helluva Boss and want your favorite I.M.P. employees in Super Smash Bros. Ultimate? This is the closest I can do with 3 hours on my hands. Trust me, I wish I could've done a little bit better here. Not the best quality in hindsight, so I apologise for that. Still, this looks to be the first Smash Bros. AMV for Helluva Boss's music, so hey! Something new-ish!
Smash Bros. is owned by Nintendo, Vivziepop owns Helluva Boss.