Party Club is a fan-made Incredibox mod, also circulated as Dead Club, that reimagines the beatboxing game with original club-themed characters and a darker horror mode. Within its lore, Unknown is presented as the central monster responsible for infecting Sally and her best friends, turning the party setting unsettling. Clips of its character beats spread through gameplay videos, fan animations and soundboards, where this short loop became a standalone cue for the character even outside a full mix.