Sprunki began as a fan-made take on Incredibox and spread quickly online in 2024 because its bright musical characters hide a secret horror mode. Sprunked grew from that wave of fan mods, reworking familiar characters like Gray with darker designs and sounds. Players shared the horror versions in gameplay videos, phase comparisons and edits, and short clips like this one moved to soundboards where creators reuse the uneasy loop without needing the full game scene.