Sprunki began as a fan made Incredibox mod, first shared on Scratch, where players place characters to build layered musical loops. Adding Black switches the cast into a horror version, and fans later expanded that idea into numbered phases with increasingly damaged designs and sounds. OWAKCX, the lime character in the effects group, became a favourite for these edits because his sound changes so dramatically. Phase 10 Definitive versions circulate on YouTube and soundboards as polished takes on that transformation, shared by creators comparing phases and building darker mixes.