A superhero-parody transformation in "Powerscaling," riffing on the Mermaid Man and Barnacle Boy segments from the original SpongeBob show — played for both comedy and spectacle.
Mermaid Bob is one of the new antagonists introduced in Bikini Horrors V3's "Fiesta en la Piscina" arc. The character is a superhero-parody transformation that riffs on the Mermaid Man and Barnacle Boy segments from the original SpongeBob SquarePants show. Where those original segments were played for comedy — an aging superhero and his eager sidekick — Mermaid Bob takes that concept and pushes it into horror territory.
The character represents V3's willingness to blend genres. "Fiesta en la Piscina" is already a more varied arc than V1 or V2, mixing horror with comedy, spectacle with dread. Mermaid Bob embodies this mix perfectly — the character is simultaneously funny and threatening, absurd and genuinely impressive. The result is a villain who does not fit neatly into any single category, which makes them one of the more interesting additions to the cast.
Mermaid Bob's connection to the Mermaid Man and Barnacle Boy parody tradition also shows the mod's deep engagement with SpongeBob lore. This is not just a surface-level reference — the character understands what made those original segments work and then subverts them in ways that feel both respectful and inventive.
Mermaid Bob's sprite is a clear homage to the Mermaid Man design from SpongeBob SquarePants, but with the horror-mod treatment. The character retains the basic silhouette — the shell bra, the trident, the aging superhero physique — but pushes it into darker territory. The colors are more saturated, the expressions more manic, and the overall design suggests a character who has taken the superhero role too far.
The sprite work during "Powerscaling" is particularly dynamic. The character's animations include superhero poses, dramatic gestures, and moments of exaggerated power that match the song's escalating energy. The visual design is meant to be spectacle — this is a character who performs as much as they fight, and the sprite reflects that theatricality.
In V3, Mermaid Bob serves as one of the primary antagonists of the "Fiesta en la Piscina" arc. The character's superhero-parody nature ties into V3's broader theme of a pool party that has spiraled out of control. In the original SpongeBob show, Mermaid Man and Barnacle Boy were retired heroes who occasionally came out of retirement for one more adventure. Mermaid Bob takes that concept and asks: what if the retirement never happened? What if the hero kept going, kept transforming, kept pushing the boundaries of what a superhero could be?
The character's relationship to Mr. Ketchup, another V3 antagonist, has been noted by the community. Both characters represent different forms of transformation — Mermaid Bob through superhero parody, Mr. Ketchup through chemical/psychological corruption. Together, they show the range of horror-comedy the mod can explore within a single arc.
The signature Mermaid Bob track and one of V3's most visually spectacular songs. "Powerscaling" is named after the gaming/fandom term for comparing character power levels, which fits the superhero theme perfectly. The song is structured as an escalating battle, with each section introducing new "power-ups" and transformations that raise the stakes. The music is bombastic and theatrical, matching Mermaid Bob's performative fighting style. The gameplay is equally spectacular, with note patterns that grow more complex as the song progresses, simulating the feeling of facing an opponent who keeps getting stronger.
The character has inspired significant fan art and cosplay within the community. The Mermaid Man homage is immediately recognizable to SpongeBob fans, and the horror-mod twist has given artists a lot to work with. Edits that combine the original Mermaid Man clips with Mermaid Bob's sprite are particularly popular on YouTube and TikTok.
Some fans have drawn connections between Mermaid Bob and the broader FNF tradition of "transformation" characters — opponents who change form during a song. Mermaid Bob fits this tradition while also bringing something unique through the superhero-parody angle and the comedic timing of "Powerscaling." The character shows that horror and comedy are not mutually exclusive — they can enhance each other when handled well.
Meet the rest of the cast — from Spongephanes to the new faces of V3.
Browse the full cast →The story behind each character — arcs, setting changes and how V3 reframes the earlier cast.
Read the Bikini Horrors FNF wiki →Full tracklist organized by arc, with official YouTube links for every track.
Browse the full OST →