An unofficial guide to ChezzarCat's SpongeBob-themed Friday Night Funkin' mod: what it is, where to download V3, the full song list, and the lore behind Spongephanes' party gone wrong.
Bikini Horrors is a fan-made mod for Friday Night Funkin', built around a twisted, parody version of Bikini Bottom. It borrows the rhythm-battle format that made FNF popular and reskins it with SpongeBob characters, horror-tinged visuals, and parody tracks inspired by mods like Sonic.EXE, Sonic Legacy, Mario's Madness and Hypno's Lullaby.
The mod is the work of solo creator ChezzarCat, and has gone through several major versions — most recently V3, subtitled "Fiesta en la Piscina" (Spanish for "Pool Party"), which expanded the mod past 40 tracks.
A self-styled "underwater god" named Spongephanes throws a party that spirals into a string of rhythm showdowns against twisted versions of familiar faces.
Standard FNF engine — hit the arrow prompts in time with the beat to win each musical face-off. No installation skill required beyond running the mod's engine.
Played for comedy as much as horror — exaggerated character writing sits alongside genuinely tense boss tracks and a handful of jump-scare beats.
The biggest release yet, adding a full new arc of songs, reworked stages, and several callback tracks. Full breakdown on the V3 page.
Official links to GameJolt and GameBanana, plus what you'll need to run it.
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