About Sunderwater
Overview
Sunderwater is the fourth song in the Bikini Horrors V1 tracklist, composed by Chezzar and Willart-Mei. After the opening challenge of Guater Game and the moodier detour of F is for Fevil, this track returns the player to a rising-action encounter that expands the cast in a way none of the earlier songs do: it introduces Spongebud Squareguy in the middle of the song itself.
The name reads as a splice of "sunder" and "underwater," which fits how the encounter plays out — something beneath the surface gets pulled apart over the course of the track. The composition is built on a steady escalation rather than sudden jumps: the tempo climbs as the song progresses, so the difficulty curve and the story tension rise together. It's a deliberate pacing choice that makes the reveal land harder than it would in a flat, high-energy track.
Story role
In the V1 arc, Sunderwater is where the mod stops being a one-villain story. Spongebud Squareguy is a corrupted take on the series' regular, and he doesn't ease himself into the narrative — he appears mid-track to confront Squidwirdy, a twisted version of Squidward who spends the encounter on the receiving end of that confrontation.
That dynamic matters for the whole V1 storyline. Squidwirdy plays a mostly reactive, dread-filled role: he isn't the one issuing a challenge, he's the one caught in the middle as Spongebud asserts himself. The reveal widens the mod's cast right as the player believes they understand the pattern of encounters, and it sets up the deeper-water confrontations that follow in Catch and Fish.
Musical structure
At 3:46, Sunderwater is neither the shortest nor the longest song in V1, but its internal shape is its defining feature. The documented style is an escalating build: what begins as a manageable rhythm accelerates into busier, more demanding passages in the back half. For players charting the V1 tracklist by difficulty, this is one of the first songs where endurance matters as much as reaction speed — the test isn't a single hard pattern but staying accurate as the tempo keeps climbing.
The dual composer credit pairs Chezzar's horror-core energy with Willart-Mei's knack for slower, atmosphere-driven builds, which shows in the song's hybrid feel: tense and atmospheric early, aggressive once Spongebud arrives.
Characters
Spongebud Squareguy
Introduced mid-song in this track. Spongebud is the aggressor of the encounter, and his arrival mid-track is one of the more unsettling reveals in the early V1 tracklist — the moment the song visibly belongs to a new character.
Squidwirdy
A twisted take on Squidward and the character Spongebud confronts here. Squidwirdy is on the defensive for the whole song, giving the encounter a different power balance than the earlier Spongephanes battles.
Notes for players
Sunderwater is often discussed as the V1 song where the mod's pacing instincts click into place — the escalation structure rewards players who treat it as a build rather than a sprint. The official preview below is the creators' own upload and matches the version that plays in the mod.
Listen
The official preview of Sunderwater is available on YouTube, uploaded by the creators themselves. This is the same version that plays in the mod, and it is the best way to experience the track outside of gameplay.
Watch on YouTube ↗