The Octo Shower is one of the Octobosses created by the Octarians and used in the events of Splatoon 2. It is the boss of Slimeskin Garrison. It also appears as a boss in the Octo Expansion, located at Cool Your Jets Station. In The Art of Splatoon 2, it is confirmed that the rubber duck shown in the first cutscene, Quackers, is the Octo Shower's love interest.
The Octo Shower appears to resemble a brass shower head, wearing a shower cap while hanging from three to four chains held by Octocopters. Its eyes appear to be made of vents while also glowing red.
When Agent 4 arrives at its mission, it rises out of a large puddle of ink before attacking. It starts by firing two Octorpedoes at the player, and also uses a Charger as another attack. It is also able to rush towards Agent 4 with a shower of ink, in a similar manner to a Flooder. When Agent 4 manages to splat all three of the Octocopters, then the Octo Shower falls and a tentacle appears. In the second phase, the Octo Shower is aided by four Octocopters and can now use a hand-cranked Splatling. In the last phase, it is able to use the Sting Ray while being aided by four Rocket Octocopters. After the final tentacle has been splatted, the Octo Shower goes into a panic and calls for more Octocopters (which do not come) before it explodes.
The Octo Shower returns in the Octo Expansion, known as the Octo Shower Supreme, where it has been moved to Cool Your Jets Station. Its battle with Agent 8 is very similar to its battle with Agent 4, except this time, Agent 8 is only able to battle with the Inkjet and the Octocopters also attack more often. Each time an Octocopter gets splatted, the Octo Shower Supreme uses its shower attack, but even faster. In the final phase, when it uses the Sting Ray, it now causes a shockwave (similar to its multiplayer counterpart, as of Version 1.3.0). Each time after the tentacle has been splatted, the Octo Shower calls for the Octocopters until the third tentacle is splatted, finishing the station.
- If the Octo Shower hits the edge of an obstacle while landing, it will start bouncing until it lands on the ground.
- The Octo Shower, similar to the Octo Oven, was not originally designed as a weapon. Before being retrofitted, it was an old boiler.
- Due to the research team adding too many functions, the Octo Shower can't fly by itself.
- There are 2 rubber ducks that sit on top of the Octo Shower; one is named Quackers and the other one is its lover. 
The Octo Shower using an enlarged Fresh Squiffer.
The Octo Shower Supreme's Sanitized Octocopters.
Unofficial render of the Octo Shower's game model on The Models Resource.
Names in other languages
|Octo Shower||Octo Shower Supreme|
|Cleanser of Inklings||Now with antibacterial cleaning power!|