Original by Toby Fox from the DELTARUNE Chapter 2 OST.

Voice sources:
EarthBound: Moonside Cafe, Acoustic Bass, Square, orchestrahit (voice 19), Wow!, Kick 2, Snare 1, Hi Hat 2
SGM: Telephone
MMX: Orchestra Hit (voice 3)
DELTARUNE Ch2: spamton_launch_noise, vocals