Mr. Cloud comes from the fan community around Incredibox Party Club, where creators design characters whose sounds can be layered into custom beats. His Part 1 normal mode loop is shared as a standalone clip for fans who want that character's instrumental without building a full mix in the game. It spread through fan videos, edits and soundboards dedicated to Party Club and related Incredibox mods, where short character loops are easy to reuse. It remains popular because it is instantly recognisable to fans and loops cleanly for edits.