Video: Here's Caleb, doing a stunning drum performance. And it's not just random drumming. All the different hits are in sync with all the Smash Bros. moves. You can hear light cymbal hits for Fox's short hop lasers, for example. He basically replaced all the game's sounds with drum hits, and it works perfectly, giving the whole fight (Armada vs. Leffen) a very cartoony vibe.
All this needs is J.K. Simmons shouting "not my tempo" repeatedly.