This song was created by muto go check the original creator out!
Crazy Tails was creaated by mash animation in Secret History about Sonic the Hedgehog and Miles "Tails" Prower

Secret History FNF B.E.S.T F.R.I.E.N.D.S (Vs Secret History Tails old version)

Hey there, I'm a guy who likes alot of kind of musics and videos games, based on Sonic, Undertale, ect... I'm the creator of an AU called: RealityTale (Undertale AU), Creator of the game Sonic.exe: The Execution, and the musician of Friday Night Funkin' VS Sonic.exe: Spirits of Hell mod. Hope ya guys are cool and safety have a great time here :)

Secret History FNF B.E.S.T F.R.I.E.N.D.S (Vs Secret History Tails old version)

Sanonix Fast Time