Undertow Spillway

From Inkipedia, the Splatoon wiki
Undertow Spillway

Undertow Spillway

Introduced Launch
Total area 2,622p
Features Inkrails(RM),Sponges

Undertow Spillway is a multiplayer stage in Splatoon 3. It is an abandoned underground flood bypass in Splatsville that was renovated into a Turf War stage.

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:
Location Timer
Checkpoint 1 The first checkpoint is just before it turns left, right next to the starting position. 10 Seconds
Checkpoint 2 The second checkpoint in the middle of the upper left area. 12 Seconds
Checkpoint 3 The third checkpoint is located on the upper middle area. 12 Seconds


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 have 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 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.

Version history

Version Adjustments
  • 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.
  • 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.


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 batlles!
— @NintendoEurope on Twitter[1]
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[2]




  • 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.

Names in other languages

Language Name Meaning
Japan Japanese マテガイ放水路
mategai hōsuiro
Mategai Flood Bypass[note 1]
Netherlands Dutch Baarsreservoir Perch reservoir
Canada and France French Réservoir Rigadelle Common Cockle Reservoir
Germany German Schwertmuschel-Reservoir Razor Clam Reservoir
Italy Italian Cisterna Cernia Grouper Cistern
Russia Russian Приливослив
High tide sink
Mexico Spanish (NOA) Desagüe Navajuela Navajuela Drain[note 2]
Spain Spanish (NOE) Cisterna Navajuela Navajuela Cistern
China Chinese (Simplified) 竹蛏疏洪道
zhúchēng shūhóngdào (Mandarin)
Razor Clam Floodway
Hong Kong Chinese (Traditional) 竹蟶疏洪道
zhúchēng shūhóngdào (Mandarin)
Razor Clam Floodway
South Korea Korean 맛조개 방수로
matjogae bangsuro
Mategai Flood Bypass
Portugal Portuguese Undertow Spillway Undertow Spillway

Translation notes

  1. Mategai refers to Gould's razor shell (Solen strictus), a type of mollusk found in Japan that is sometimes used as a dish ingredient.
  2. Navajuela refers to Ensis macha, a type of mollusk found in Peru, Chile, and Argentina.