Undertow Spillway

Splatoon 3​

Undertow Spillway

Added in	Drizzle Season 2022 (1.1.0)
Total area	2,527p
Features	Inkrails(RM), Sponges
Hazards	Abyss

For the song performed by Wet Floor, see Undertow.

Undertow Spillway is a multiplayer stage in Splatoon 3. It is also one of the stages that can have Tricolor Turf Wars.

Layout

Overhead view of Undertow Spillway

Undertow Spillway is an abandoned underground flood bypass in Splatsville that was renovated into a Turf War stage. The spawn area features a wide area of turf that goes far to the right. The first drop is accessible to the other team via an uninkable ramp and goes also as far as the spawn area. The drop after that is an open area and to the left allows access to a raised area and an uninkable raised area. To the right of the open area is a small drop to another open area. The middle is two open areas separated by a wall in the middle.

Ranked Battle terrain

In Ranked Battles, specifications for the terrain or placement of objects are different between the modes; these changes create new paths or new objects to take cover behind.

Splat Zones

There are two Splat Zones, both located underneath the glass areas. An uninkable ramp is added to allow access to the opposing team's base.

Tower Control

The Tower starts in the middle of the stage, replacing the Bumper normally there. When advancing, the Tower goes left then straight, closer to the opposing team's side. It then goes right and continues going until it reaches the goal. The large glass areas in the middle are removed and a ramp is added in the middle of the opposing team's base.

In Splatoon 3, checkpoints have been added:
Checkpoint	Location	Timer (Seconds)	Progress Amount
			Before	After	Total
1	The first checkpoint is just before it turns left, right next to the starting position.	5	96	86	10
2	The second checkpoint is in the middle of the upper left area.	6	59	47	12
3	The third checkpoint is located in the upper middle area.	6	24	12	12

Rainmaker

The Rainmaker is located in the middle of the stage, replacing the Bumper normally there. The checkpoints are located in the open area to the right, and to the far left on the opponent's raised area. A ramp is added to the far left to allow access to the checkpoint. The pedestal is located on the first drop. The right of the spawn areas has been altered slightly, having an uninkable path being the only way to get to the pedestal. An Inkrail is added to the far right of the spawn.

Clam Blitz

The Clam basket is located to the left of the spawn, two drops down. An uninkable ramp has been added just behind the basket to help access the platform behind it.

Splatoon 3

Version 1.0.0 to 7.1.0

Undertow Spillway was released with the launch of Splatoon 3.

Version 7.2.0 onwards

The image released on social media announcing changes to Undertow Spillway.

Undertow Spillway underwent a major renovation in Version 7.2.0. The middle of the stage was made more open by removing a chunk of the wall that divides the center, and allowing players to pass underneath a pillar near snipe. An extension was added to the left side of the spawning platform.

Splatfests

Undertow Spillway was available in the following Splatfests as a Tricolor Turf War stage in Splatoon 3:

• Spicy vs. Sweet vs. Sour
• Shiver vs. Frye vs. Big Man

Big Run

Undertow Spillway is where the third Big Run took place. Its layout adds many inkable blocks, plus ten Gushers which the Salmonids use to enter the stage. Six Gushers are active at low tide, three at medium tide, and two at high tide. As usual, there are three tides; low tide takes place in the middle of the stage with the Egg Basket placed on the sloped ledge in the center, medium tide sets players on the raised area just outside of Team Alpha's spawn, and high tide sets players in the spawn area with the majority of the stage flooded. For this Big Run only, the Egg Basket's hitbox is expanded downward due to its placement on raised platforms across all tides. The only Known Occurrences that can occur on this stage are Fog, The Mothership, and Rush.

Version history

Version	Adjustments
1.2.0	— Removed the box on top of the grating in Splat Zones because of an issue where attacks would pass between the box and the terrain despite looking like it blocked attacks from below.
2.0.0	— Changed some parts of the Turf War mode terrain. Deleted part of the terrain on the left-hand side when looking from the player start areas. Added ramps to allow for invading opponent areas. — Fixed an issue where certain walls, when inked by a bomb's explosion, would be inked in locations that differed from the explosion. — Fixed an issue where players standing on the glass floor could be damaged from the other side. — Fixed an issue in Rainmaker mode where the DON'T RETREAT! warning would be shown at a shorter distance than intended.
2.1.0	— Fixed an issue when playing Splat Zones/Tower Control/Rainmaker/Clam Blitz modes that prevented you from being able to submerge in ink in certain areas, regardless of whether they were inked or not.
3.0.0	— Fixed an issue in Rainmaker that caused the goal distance to change significantly if you jumped on an enemy sponge of a certain size while holding the Rainmaker.
4.0.0	— Fixed an issue in Rainmaker mode where a "DON'T RETREAT!" warning would be triggered in some spots even if the team was advancing with the Rainmaker.

Maps

1.1.0 - 1.2.1

• 

  Turf War

• 

  Splat Zones

• 

  Tower Control

• 

  Rainmaker

• 

  Clam Blitz

2.0.0 - 7.1.0

• 

  Turf War

• 

  Splat Zones

• 

  Tower Control

• 

  Rainmaker

• 

  Clam Blitz

• 

  Tricolor Turf War

7.2.0

• 

  Turf War

• 

  Splat Zones

• 

  Tower Control

• 

  Rainmaker

• 

  Clam Blitz

Gallery

• 

  Two Autobombs in Undertow Spillway

• 

  An Angle Shooter reflecting on a glass panel

• 

  The map in Tricolor Turf War from above.

• 

  Undertow Spillway during a Big Run

• Promotional Video (link to file)

Quotes

“	Undertow Spillway is a former flood bypass located deep under Splatsville. Abandoned for years, it surged in popularity after it was renovated into a stage for Turf War battles!	”
— @NintendoEurope on Twitter

“	Squid Research Lab reporting from Undertow Spillway, a former flood bypass that's now used for Turf War battles! This abandoned facility is another shining example of upcycling, as the varied terrain lends itself to strategic and hard-fought skirmishes among Splatsville locals.	”
— @SplatoonNA on Twitter

Quotes

View the quotation page.

Trivia

• This is the first stage to have different names between both Spanish localizations. Both French localizations have used different names for certain stages since the launch of Splatoon, while both English localizations of Splatoon used the same stage names before all regions started using one localization from Splatoon 2 onward.
• The stage was the first stage introduced in Splatoon 3 to be used in Tricolor Turf War.
  • It is also the first stage to be used in both Tricolor Turf War and Big Run.
• This stage strongly resembles Tokyo's Metropolitan Area Outer Underground Discharge Channel, the main chamber of which is often referred to as an "underground temple" or "floodwater cathedral", hence the internal stage name of "Temple".
• During Big Run, as the players get launched onto the stage, an alarm-like sound can be heard.
  • Additionally, the Grizzco helicopter stays immobile the entire time, unlike in other stages.
• This was the first Big Run stage to take place indoors. It is also the only Salmon Run stage in any Splatoon game where the time of day does not change to night during a Known Occurrence; instead, the lights on the ceiling dim.

Names in other languages

Language	Name	Meaning
Japanese	マテガイ放水路 mategai hōsuiro	Mategai Flood Bypass
Dutch	Baarsreservoir	Perch reservoir
French	Réservoir Rigadelle	Common Cockle Reservoir
German	Schwertmuschel-Reservoir	Razor Clam Reservoir
Italian	Cisterna Cernia	Grouper Cistern
Russian	Приливослив Prilivosliv	High tide sink
Spanish (NOA)	Desagüe Navajuela	Navajuela Drain
Spanish (NOE)	Cisterna Navajuela	Navajuela Cistern
Chinese (Simplified)	竹蛏疏洪道 zhúchēng shūhóngdào (Mandarin)	Razor Clam Floodway
Chinese (Traditional)	竹蟶疏洪道 zhúchēng shūhóngdào (Mandarin)	Razor Clam Floodway
Korean	맛조개 방수로 matjogae bangsuro	Mategai Flood Bypass
Portuguese	Undertow Spillway	Undertow Spillway
Internal	Temple