The eager sidekick to Mermaid Bob in "Powerscaling," a horror-parody take on Barnacle Boy from the Mermaid Man and Barnacle Boy segments of SpongeBob SquarePants.
Barnacles Guy is one of the new antagonists introduced in Bikini Horrors V3's "Fiesta en la Piscina" arc. The character is a horror-parody take on Barnacle Boy — the eager, often overzealous sidekick to Mermaid Man from the SpongeBob SquarePants universe. Where the original Barnacle Boy was a comedic foil to Mermaid Man's aging heroism, Barnacles Guy pushes that dynamic into darker territory.
As Mermaid Bob's sidekick, Barnacles Guy represents the younger, more reckless energy that complements his partner's theatrical superhero persona. Together, they form a duo that riffs on the classic superhero-sidekick relationship while subverting it with horror elements. The character shows the mod's commitment to exploring every corner of SpongeBob lore and twisting it into something unsettling.
Barnacles Guy's presence in "Powerscaling" adds another layer to the song's escalating chaos. Where Mermaid Bob brings the bombastic, performative energy, Barnacles Guy contributes a more frantic, unpredictable element that keeps the player off-balance throughout the track.
Barnacles Guy's sprite is a clear homage to the Barnacle Boy design from SpongeBob SquarePants, but with the horror-mod treatment. The character retains the basic silhouette — the young sidekick physique, the energetic posture — 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 sidekick role to dangerous extremes.
The sprite work during "Powerscaling" is dynamic and frantic. The character's animations include rapid movements, exaggerated sidekick poses, and moments of unpredictable energy that match the song's chaotic sections. The visual design is meant to complement Mermaid Bob's theatricality with a more raw, uncontrolled presence.
In V3, Barnacles Guy serves as Mermaid Bob's sidekick in the "Fiesta en la Piscina" arc. The character's relationship to Mermaid Bob mirrors the original Mermaid Man and Barnacle Boy dynamic — an aging hero and his eager young partner — but twisted into horror territory. Where the original duo were retired heroes who occasionally came out of retirement, Barnacles Guy and Mermaid Bob represent a partnership that never stopped, never slowed down, and never questioned whether they should keep going.
The character's relationship to Mermaid Bob is central to understanding both characters. Barnacles Guy is the loyal follower who enables Mermaid Bob's increasingly extreme behavior. Together, they show how the superhero parody tradition can be pushed into horror — not just through individual characters, but through the dynamics between them.
Barnacles Guy appears alongside Mermaid Bob in "Powerscaling," one of V3's most visually spectacular songs. While Mermaid Bob brings the bombastic, theatrical energy, Barnacles Guy contributes a more frantic, unpredictable element. The character's sections of the song feature rapid note patterns and chaotic rhythms that simulate facing an opponent who moves faster than you can react. The gameplay during Barnacles Guy's moments is deliberately disorienting, with note patterns that shift unexpectedly and require quick adaptation.
The character has inspired fan art that explores the darker side of the sidekick archetype. Artists have depicted Barnacles Guy as both a loyal follower and a character who might be more dangerous than he appears — the kind of sidekick who enables his hero's worst impulses rather than questioning them.
Some fans have drawn connections between Barnacles Guy and the broader FNF tradition of "duo" opponents — pairs of characters who fight together. Barnacles Guy and Mermaid Bob fit this tradition while also bringing something unique through the superhero-parody angle and the way their dynamic evolves throughout "Powerscaling." The character shows that even sidekicks can be compelling horror antagonists when given the right treatment.
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.
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