Sprunki began as a fan made mod of the music game Incredibox and spread through Scratch, YouTube and TikTok in 2024, drawing attention for letting players mix character loops into songs. Dragging the black horror icon onto a character switches the cast into darker forms, and Mr Fun Computer changes from a smiling monitor into a damaged, threatening version. That hidden horror layer helped Sprunki move beyond music mixing into edits, lore videos and fan games, and this loop remains a shortcut for its creepy side.