Splatoon 3

Splatoon 3 is the third entry in the Splatoon series and the sequel to Splatoon 2. Announced during the February 2021 Nintendo Direct, it was released on the Nintendo Switch on 2022-09-09. It quickly sold well, selling 7.9 million copies in its first three weeks, becoming approximately the eighteenth-best-selling Nintendo Switch title in the process.

Following the Team Chaos victory in the Chaos vs. Order Splatfest, Splatoon 3 style is very chaotic, bringing post-apocalyptic, patchwork, and other chaotic elements together with the styles of both previous games.

Splatoon 3 expands the Splatoon series on many different fronts, with an extensive story mode and lore, new Salmon Run challenges and rewards, a wider range of customisation with more options and the addition of Splashtags, and the newly-added locker room. Additionally, Splatoon 3 streamlines many aspects of the previous games. The lobby has been reworked into a greatly-expanded practice area accessible between matches, Splatfests are overhauled for three teams with a new Tricolor Turf War mode, and the UI has been made much more responsive and informative.

Development
In an interview with the weekly Famitsu magazine from around July 2019, Splatoon series producer Hisashi Nogami said that after completing Splatoon 2, the team focused on the Octo Expansion DLC as well as updates, and would not think about the future until completing version of the game. This means that Splatoon 3 development had not started as of July 2019 and presumably started after the release of Version 5.0.0 on 2019-07-31. This is quite different compared to the timing of the development of Splatoon 2, which started immediately after Splatoon was released.

On 2021-02-17, Splatoon 3 was announced in a Nintendo Direct.

Splatoon 3 is the first game in the series to be localized into Korean and Chinese.

On 2021-09-23, more information was revealed about Splatoon 3 in a Nintendo Direct, including new special weapons, stages, and music, as well as the reveal of the single-player mode Return of the Mammalians.

On 2022-01-01, the @SplatoonJP Twitter account posted a Tweet for the arrival of 2022. The post included a video with an Inkling performing a victory pose along with a jingle, while 2022 is written in ink. This revealed the return of the brush main weapon class, marking the final returning weapon class revealed.

On 2022-01-27, Volume 16 of the Splatoon manga was released with a teaser of the new Agent 3 arriving in Splatsville.

In a Nintendo Direct on 2022-02-09, Salmon Run Next Wave, a successor to Salmon Run from, was revealed to be a mode in Splatoon 3, introducing new Boss Salmonids, Egg Throwing, and the King Salmonid. It was also confirmed that the game will be released in the summer of 2022.

On 2022-04-22, a fourth trailer for Splatoon 3 was released, showing gameplay of a Turf War and revealing the release date to be 2022-09-09. It was also revealed that the game will support cloud saves (for offline play data) and that there will not be separate regional versions, meaning that all language options will be available to every player.

On 2022-08-10, an approximately thirty-minute long Nintendo Direct focused entirely on Splatoon 3, titled the Splatoon 3 Direct was aired, revealing many new details about various aspects of the game, such as its modes, characters, stages, weapons, etc. A free demo of the game called the Splatoon 3 Splatfest World Premiere was also revealed.

On 2022-08-25, Nintendo Treehouse showed off some gameplay for the campaign, such as the reveal of the first level of Future Utopia Island, Get to Know Alterna, Your Only Choice.

On 2022-08-27, the Splatoon 3 Splatfest World Premiere was started at different time zones with 26 weapons to use and a variety of different gear to wear. The theme was Rock vs. Paper vs. Scissors.

On 9 September 2022, Splatoon 3 was released.

Story
The game takes place 5 years after the events of Splatoon 2 in the Splatlands, a sun-scorched desert inhabited by battle-hardened Inklings and Octolings, and Splatsville, a city of chaos that developed rapidly since the last Splatfest of, Chaos vs. Order. The game's design is themed around chaos due to the outcome of the Splatfest.

The Splatoon 3 single-player story mode is called "Return of the Mammalians". Octarians return as the primary enemies, but the majority of them now appear mutated with brown fur and purple eyes. The story starts in the Crater where the player's character, an Inkling or Octoling accompanied by their companion Smallfry, is recruited by Craig Cuttlefish into the New Squidbeak Splatoon as the new Agent 3. The majority of the mode takes place in a location beneath the Crater called Alterna, a large, snowy area littered with incomplete structures and hazardous Fuzzy Ooze with a rocket at its center. Callie, Marie, and the Captain (the former Agent 3 from the previous games who is now the captain of the group following Cuttlefish's retirement) appear in this area to aid the player in their goal of exploring Alterna and finding Cuttlefish, who went missing shortly after recruiting the player.

Gameplay


Like its predecessors, Splatoon 3 is a third-person shooter game focused on online multiplayer ink battles, in which eight players are divided into two teams of four. Players have two main forms and may switch between the two at will: their humanoid form, in which they can use weapons to spread ink and splat opponents, and their swim form - with a squid or octopus appearance, which, if they enter their team's ink while in the form, allows them to swim through ink at greater speeds, including up walls, recharge their ink tank faster, and hide from opponents.

Players have access to new movement techniques to dodge attacks and expand the possibilities of attacks. A Squid Roll allows them to leap and twirl out of their ink and a Squid Surge allows them to quickly swim up ink-covered walls and jump out at the top, and both have a short phase of invincibility. Additionally, medals are now awarded at the end of multiplayer matches for various accomplishments, such as inking the most and getting the most splats.

In the Splatlands, players in online battles enter the battlefield with a spawner drone. It floats above the stage behind each base and allows players to aim at their desired deployment location within that team's spawn area. After choosing where to deploy, the spawner drone launches players to that location in squid or octopus form similar to a Super Jump. If a player is splatted, they will respawn in the spawner drone and will launch in the same way a battle starts.

In story mode, Smallfry, nicknamed "little buddy", accompanies the player. It can be thrown to attack Octarians, interact with contraptions to solve various puzzles, and remove hazardous Fuzzy Ooze.

Characters



 * Agent 3 (Splatoon 3)
 * Smallfry
 * New Squidbeak Splatoon
 * Squid Sisters
 * Callie, also known as Agent 1
 * Marie, also known as Agent 2
 * Captain, the former Agent 3 from Splatoon as the new leader of the group
 * Craig Cuttlefish
 * DJ Octavio
 * Octarians
 * O.R.C.A.
 * Judd and Li'l Judd
 * Deep Cut
 * Shiver
 * Frye
 * Big Man
 * Mr. Grizz
 * Sheldon
 * Gnarly Eddy
 * Nails
 * Jel La Fleur
 * Mr. Coco
 * Harmony
 * Murch
 * Crusty Sean
 * Off the Hook
 * Pearl
 * Marina
 * Inklings
 * Octolings
 * Salmonids
 * Zapfish
 * Super Sea Snails

Player customization
The genders of the Inklings and Octolings are no longer explicitly stated. Instead, the player "selects a style". Additionally, Octolings can now be selected from the start rather than having to be unlocked from paid DLC first.

New Player Settings have been added:


 * Two new skin tones in addition to the seven returning, for a total of nine.
 * Eleven new eye colors, including six heterochromatic eyes that form a gradient from one color to another, in addition to 11 returning colors, for a total of 22. Some of these new eye color options feature colored pupils.
 * New hairstyles and legwear.
 * Hairstyles and legwear are no longer split between genders, meaning either style can access any hairstyle or legwear option. Hairstyles are still split between species.
 * Four new Inkling hairstyles and four new Octoling hairstyles are available, many of which are asymmetrical. All 16 hairstyles from return, for a total of 24 options.
 * Four new legwear options have been added in addition to the eight returning, for a total of 12.
 * The player can now also customize their character's eyebrow shapes. There are new eyebrow options in addition to four eyebrow shapes from previous games (that previously matched the character's species and gender). In addition to their classic eyebrows, they can have the same eyebrows but with a slit, rounded eyebrows (for Inkling girls), triangular eyebrows (for Inkling boys), teardrop-shaped eyebrows (for Octolings), thin eyebrows (for Inklings), and curved eyebrows (for Octolings).
 * The player now has a "little buddy", a Smallfry that plays a role in the single-player mode. Their hairstyle can be customized, with a total of seven different options.
 * Customizable Splashtags have been added, displaying the player's username alongside changeable titles and backgrounds. These are displayed in certain situations, such as at the start and end of battles. More title phrases are unlocked as the player plays in Turf War matches.
 * Players can now customize their emotes upon winning battles.

There is also new gear, as well as gear returning from previous games:


 * Returning headgear includes the Annaki Beret & Glasses, Annaki Mask, Fugu Bell Hat, Full Moon Glasses, Golf Visor, Knitted Hat, Safari Hat, Short Beanie, Sneaky Beanie, Studio Headphones, SV925 Circle Shades, Woolly Urchins Classic, Swim Goggles, Fake Contacts, Blowfish Bell Hat, White Arrowbands, Takoroka Mesh, 18K Aviators, Squidvader Cap, Designer Headphones, Squidlife Headphones, FishFry Biscuit Bandana, Takoroka Visor, Tinted Shades, Double Egg Shades, Firefin Facemask, FishFry Visor, Forge Mask, and Streetstyle Cap.
 * New headgear includes the Retro Framers, Cephalo Pods, Squidband, BlobMob Mask, Classic Bowler, Home-Team Catcher, Howdy Hat, Ink-Black Flap Cap, Invisifloats, Moto Shades, Ocho OctoPhones, Party Hard Hat, Wharfside Cap, Winkle Stripe Helm, Jean Dream Bucket, Air Gills DX, Annaki Charms, and Squidbeak Shield.
 * Returning clothes include the Annaki Yellow Cuff, B-ball Jersey (Home), Camo Layered LS, Camo Zip Hoodie, King Jersey, N-Pacer Sweat, Purple Camo LS, Red Hula Punk with Tie, Rockenberg White, Shirt & Tie, Zekko Long Carrot Tee, Herbivore Tee, Sunny-Day Tee, Negative Longcuff Sweater, Layered Vector LS, Black Inky Rider, Squid Satin Jacket, Gray Vector Tee, Front Zip Vest, Light Bomber Jacket, Takoroka Nylon Vintage, White V-Neck Tee, Octobowler Shirt, Annaki Flannel Hoodie, Black Polo, Zapfish Satin Jacket, White 8-Bit FishFry, Pirate-Stripe Tee, White Shirt, and Lumberjack Shirt.
 * New clothing includes the Airflow & Hustle Jacket, Red Battlecrab Shell, and Tri-Shred Tee.
 * Returning shoes include the Amber Sea Slug Hi-Tops, Blue Power Stripes, Choco Clogs, Punk Cherries, Red FishFry Sandals, Snowy Down Boots, Tea-Green Hunting Boots, Turquoise Kicks, Oyster Clogs, Red Hi-Tops, Squid-Stitch Slip-Ons, Truffle Canvas Hi-Tops, Arrow Pull-Ons, Orange Arrows, Red & Black Squidkid IV, Zombie Hi-Horses, Yellow FishFry Sandals, Annaki Habaneros, Tan Work Boots, Moto Boots, Punk Whites, Hunter Hi-Tops, Blue Lo-Tops, Black Flip-Flops, Hunting Boots, Strapping Whites, Trail Boots, Red Hi-Horses, Blue & Black Squidkid IV, and Snow Delta Straps.
 * New shoes include the Force ReBoots, Orange Dadfoot Sandals, BlobMob Flip-Flops, Dark-Roast Boaties, Arrow Toesies Blu, Desert Chukkas, E-JECT 30XX, Mako Bucket Hi-Tops, Pink Dadfoot Sandals, Slamgerine Slip-Ons, Suede Bosses, Tenya OctoReds, and U Jellys.

Locations
At this time, these locations are known:


 * Splatlands
 * Splatsville
 * Ammo Knights
 * Naut Couture
 * Man-o'-Wardrobe
 * Crush Station
 * Hotlantis
 * Crab-N-Go
 * Battle Lobby Tower
 * The Shoal
 * Test Range
 * Grizzco Industries
 * Tableturf Battle Dojo
 * Scorch Gorge
 * Eeltail Alley
 * Hagglefish Market
 * Undertow Spillway
 * Mincemeat Metalworks
 * Alterna
 * The Crater
 * Greater Inkopolis
 * Flounder Heights
 * Hammerhead Bridge
 * Museum d'Alfonsino
 * Mahi-Mahi Resort
 * Inkblot Art Academy
 * Sturgeon Shipyard
 * MakoMart
 * Wahoo World
 * Sockeye Station
 * Gone Fission Hydroplant
 * Spawning Grounds

Turf War
There are no known changes to the rules of Turf War in Splatoon 3 besides the addition of spawner drones. As in previous games, Turf War is the only Regular Battle mode.

Tricolor Turf War
First introduced in the Splatfest World Premiere, Tricolor Turf War is a new mode for Splatoon 3. This mode is a Splatfest exclusive mode and is a remixed version of the Turf War mode in which the three Splatfest teams battle in one Turf War. The Splatfest team with the most points at the halftime of the Splatfest has four players in the match, while the other two teams have two players. In the middle of the stage, there is a device called the Ultra Signal. If the two losing Splatfest teams capture the Ultra Signal, the Sprinkler of Doom will constantly rain that team's color for the rest of the match, and it cannot be destroyed. The person trying to capture the Ultra Signal is immobile while capturing it, so they can be splatted in the process.

Anarchy Battle
Anarchy Battle is a new mode that replaces Ranked Battles from previous games. It features all four modes from Ranked Battles that previously appeared (namely Splat Zones, Tower Control, Rainmaker, and Clam Blitz) on rotation and the returning rank system. There are two types of Anarchy Battles, Series and Open; Series Anarchy Battles do not allow for friends to join each other and use a new best out of five ruleset by which losing three battles results in a loss while winning five battles results in a victory, while Open Anarchy Battles are standalone battles in which players have the option to either join their friends or play solo.

League Battle
League Battle, a returning mode from in which teams can take part in Anarchy Battles, is planned to be added to the game in a future update.

X Battle
X Battle is only available to players who have achieved an extremely high rank, and is going to be added to the game December 1st in the Chill Season 2022 update.

The Shoal
The Shoal allows Private Battles and Salmon Run to be played locally with other nearby players, and is available as part of the Battle Lobby.

Tableturf Battle
Tableturf Battle is an adaptation of Turf War styled after a spin-off card game, and involves various cards depicting characters and weapons that fill areas like in a Turf War. There are over 150 different cards that players can use to build a deck; they correspond to various shapes that can be used to cover turf and they can be charged up to cover additional turf, with the winner of the game being whoever covers the most squares of turf. The mode takes place in the Tableturf Battle Dojo.

Salmon Run Next Wave


Salmon Run Next Wave is a horde mode that is the successor to Salmon Run from, introducing new Boss Salmonids, stages, and mechanics, such as egg cannons, King Salmonids, and Big Runs. The mode can now be played at any time, rather than being available on a set schedule.

New stages

 * Scorch Gorge - A new stage with a visual aesthetic very similar to Saltspray Rig or Salmon Run stages but located in a desert wasteland instead of at sea.
 * Eeltail Alley - A new stage set in an alley in the middle of Splatsville. Various bridges placed around the stage give it a separate upper and lower layer.
 * Undertow Spillway - A new stage set inside an underground flood bypass, that used to be abandoned before being restored for Turf Wars.
 * Mincemeat Metalworks - A new stage set in a Metalworks made from scrap metal that makes scrap metal.
 * Hagglefish Market - A new stage set in a market on water, it appears to be "fishy".
 * Brinewater Springs - A new stage set in an urban area with Japanese architecture.

Returning stages

 * Museum d'Alfonsino - A returning stage from, still located in Inkopolis. The shape of the large rotating platforms in the center of the stage appears to have been altered.
 * Hammerhead Bridge - A returning stage from, still located in Inkopolis, but construction on it has been completed, so the layout is very different.
 * Mahi-Mahi Resort - A returning stage from, still located in Inkopolis. Takes place on a swimming pool within a holiday resort. The layout for this stage seems to be very different as well.
 * Inkblot Art Academy - A returning stage from, located in an art school.
 * Sturgeon Shipyard - A returning stage from, taking place on a cargo ship being built.
 * MakoMart - A returning stage from, taking place in a supermarket/grocery store.
 * Wahoo World - A returning stage from, located in an amusement park.
 * Flounder Heights - A returning stage from Splatoon, still located in Inkopolis. The spawn areas have been largely overhauled.

Salmon Run

 * Sockeye Station - A new stage in the Salmon Run Next Wave mode, with a similar aesthetic to previous Salmon Run stages.
 * Gone Fission Hydroplant - A new stage, shown in the Splatoon 3 Direct.
 * Spawning Grounds - The basic Salmon Run stage from Splatoon 2 returns with minimal changes.

Main weapons

 * The Stringer class was added, of which one known weapon is the Tri-Stringer. Once charged, it fires three strings of ink simultaneously. Its design seems to be based on a fishing rod, using the reel and string. The weapon also has two stages of charge, as seen in the Nintendo Switch OLED trailer.
 * A new Splatana class was released, starting with the Splatana Wiper, a window wiper-like weapon that fires slashes of ink when used and can perform a charged slash to deal high damage to a faraway opponent or instantly splat an Inkling or Octoling within melee range.
 * All base main weapons from previous games return, except for the Dual Squelcher. However, no second variants were available at launch.

Sub weapons

 * All sub weapons in Splatoon 2 return in Splatoon 3. It is currently unknown if they will retain the same attributes from the previous games.
 * A new sub weapon named the Angle Shooter was revealed. It is thrown in a straight line, bouncing off any surface and leaving behind a trail. Both the projectile and its trail slightly damage and tag enemies on contact, allowing them to be seen through opaque obstacles, similar to the Point Sensor.
 * It is part of the Jet Squelcher and Splattershot Pro's sets.

Special weapons


Five special weapons from Splatoon 2 have been confirmed to be returning, those being Tenta Missiles, Inkjet, Ink Storm, Booyah Bomb, and Ultra Stamp. It is unknown if their functionalities have been changed.
 * A special weapon similar to the Inkzooka, called the Trizooka, was added. Three blobs of ink can be shot out of it, creating a large blast when it hits a surface. It can be fired three times.
 * It is part of the Splattershot, Clash Blaster, and Squeezer's sets.
 * Before the Release Date Revealed trailer, a player using a Tri-Stringer could be seen using the Trizooka; its kit has been changed to include the Killer Wail 5.1 instead (see below).
 * The Killer Wail 5.1, a set of six miniature floating lasers similar to the Sting Ray, was added. These lasers appear to follow enemy players in pairs.
 * It is a part of the .52 Gal, Bamboozler 14 Mk I, Inkbrush, and Tri-Stringer's sets.
 * A crab-shaped robot that can transform into a ball, called the Crab Tank, was added. The player can alternate between rapid-fire shots and a strong, cannon-like blast while using it.
 * It is part of the Splattershot Pro, L-3 Nozzlenose, Splash-o-matic, and Splat Dualies' sets.
 * A deployable shield dome called the Big Bubbler was added. Atop the dome is a generator that can be Super Jumped to and attacked to decrease the radius of the dome itself.
 * It is part of the Splat Roller, Classic Squiffer, Splattershot Jr., and Blaster's sets.
 * A grappling hook-like special weapon, called the Zipcaster, was added. Using it, players can grapple to walls or other surfaces and attack with their main weapon, though doing so decreases its duration.
 * It is part of the Octobrush, Carbon Roller, Splatana Stamper, and Luna Blaster's sets.
 * The Zipcaster features a landing-spot marker similar to the Inkjet's landing marker in Splatoon 2, albeit with a different design.
 * Simularly to the Tri-Stringer being seen using the Trizooka; the Splash-o-matics' kit was also changed from Zipcaster to Crab Tank.
 * A missile special weapon, called the Triple Inkstrike, was added. The player launches three small Inkstrike-like missiles and throws three beacons. The missiles then land where each beacon is thrown, creating tornadoes of ink.
 * It is part of the Slosher, Splat Brella, and Rapid Blaster's sets.
 * A badminton birdie-shaped buoy called the Wave Breaker. The player deploys it and the center ball jumps several times sending out concentric rings that track and damage the enemy. These can be jumped over to avoid.
 * It is part of the Dualie Squelchers, E-liter 4K, E-liter 4K Scope, Heavy Splatling, and Range Blaster's sets.
 * A vacuum-like special weapon, called the Ink Vac, was added. Players can absorb incoming fire, including sub weapons, and release a blast of ink as a counterattack.
 * It is part of the Splat Charger, Splatterscope, Tenta Brella, Jet Squelcher, .96 Gal, and Rapid Blaster Pro's sets.
 * A special weapon similar in appearance to an inflatable shark, called the Reefslider, was added. Players can charge forward while riding it, and produce an explosion of ink with a blast radius similar to the Splashdown from Splatoon 2.
 * It is part of the Aerospray MG, Dark Tetra Dualies, and Undercover Brella's sets.
 * A fridge-like special weapon, called the Tacticooler, was added. The Tacticooler is a beverage cooler with four energy drinks, one for each teammate. Before being thrown, it is shaped like a canned food container and when drunk, each drink will give out effects similar to Run Speed Up from the first two games and Quick Respawn, also from Splatoon 1 and 2.
 * It is part of the Dapple Dualies, Dynamo Roller, N-ZAP '85, and H-3 Nozzlenose's sets.
 * Ink Storm is part of the Bloblobber, Explosher, and Nautilus 47's sets.
 * In Splatoon 2, the Explosher had the Bubble Blower and the Nautilus 47 had the Baller.
 * Booyah Bomb is part of the Glooga Dualies, Hydra Splatling, and Sloshing Machine's sets.
 * In Splatoon 2, the Glooga Dualies had the Inkjet, the Hydra Splatling had Splashdown, and the Sloshing Machine had the Sting Ray.
 * Ultra Stamp is part of the Mini Splatling, Splatana Wiper, and Sploosh-o-matic's sets.
 * In Splatoon 2, the Mini Splatling had Tenta Missles and the Sploosh-o-matic had Splashdown.

Music
The game contains a new cover of Splattack! by C-Side, different from both the original version and the Octo Expansion cover. This cover seems to suggest the game's music will follow a more rock-esque style, especially considering the overall theme of the game seemingly being based on Chaos winning the Chaos vs. Order Splatfest.

A new band called C-Side has a song named Clickbait, which was first heard in the 2021-09-23 Nintendo Direct.

A new band called Front Roe made up of previous Squid Squad members Ichiya, Namida and Murasaki, and an unnamed fourth member has a song named Sea Me Now.

A sample of an early version Now or Never! can be heard in an official tweet released on 2022-01-01. A full version of Now or Never! can be heard in the background of the gameplay trailer on 2022-04-22.

Deluge Dirge and a yet unnamed song that sounds similar to ω-3's songs were featured in the Salmon Run Next Wave trailer in the 2022-02-09 Nintendo Direct.

Off the Hook are in a new band called Damp Socks feat. Off the Hook. They have made a new song called Candy-Coated Rocks.

Another song by C-Side, Paintscraper, was revealed on 2022-08-05.

A new set of idols, known as Deep Cut, were revealed on 2022-08-10 during the Splatoon 3 Direct. The group consists of Shiver, Frye and Big Man. They debuted alongside a song called Anarchy Rainbow.

Deep Cut has a new cover of Now or Never!, heard in Splatfests.

Another Damp Socks feat. Off the Hook song, Tentacle to the Metal, was revealed on 7 September 2022.

There are multiple other songs by C-Side and Front Roe but are yet to be named.

Post-launch updates
Much like the previous Splatoon games, Splatoon 3 is planned to have several free post-launch updates. Such updates are liable to prevent Battle Replays from working due to balance adjustments. Update content will include using keywords to interact with ghosts in a channel, tweaked methods for adjusting ranks, X Battles, League Battles, and additional stages. Additional weapons and catalogues will also be added every three months. Additionally, major paid DLC featuring Pearl and Marina is also planned for Splatoon 3.

Trivia

 * The signature ink color set for this game is similar to the Color Lock set in and one of the Ranked Battle color sets in, as well as Deep Cut's color scheme.
 * The Inkopolis Memorial Mixtape ends with the same drum loop used in the loading screen followed by the opening of the original version of Splattack!, similar to the music of the Splatoon 3 announcement trailer.
 * In the Splatoon 3 announcement trailer, it could be seen that, while Inklings and Octolings are being shown individually, the Octoling using the Hydra Splatling had the symmetrical teeth of an Inkling, unlike the asymmetrical teeth Octolings usually have. This was later corrected in some promotional art of Octolings on the Splatoon 3 official Japanese website after the game's release date reveal.
 * Upon closer inspection, the "3" in the final version of the game's logo has cracks visible on its surface. This is a reference to the game being themed around chaos and it taking place in a desert region.
 * As a reference to the game being the third in the series, the number three is a recurring theme in the game, similarly to eight being a theme in the Octo Expansion. For example:
 * The protagonist of Return of the Mammalians is named Agent 3.
 * The most prominent bands in the game, C-Side and Deep Cut, each have three members.
 * Splatfests feature three teams, Tricolor Turf Wars, and 333x battles.
 * Several weapons introduced in the game are named after and associated with the number three, namely the Tri-Stringer (which fires three shots at once), the Trizooka (which can fire three times, each shot consisting of three blasts), and the Triple Inkstrike (which has three uses before expiring).
 * Multiple new gear items are named to fit this theme, such as the Tri-Shred Tee.
 * The model of the Octobot King used by DJ Octavio in Return of the Mammalians is called the Octobot King L3.Gs.
 * The time limit in the final boss battle of Return of the Mammalians is 3:33, and the final mission of the mode, After Alterna, has an entry fee of 333 Power Eggs and first-time clear reward of 3333 Power Eggs.
 * Three pieces of treasure are collected in Return of the Mammalians.
 * In Tableturf Battle, CPU opponents each have three difficulty ranks, and must be defeated in a rank three times to unlock the next rank. Additionally, non-jellyfish CPU opponents reward sleeves after being defeated 30 times on the third difficulty rank.
 * In Salmon Run Next Wave, the maximum hazard level is 333%.
 * Octolings draw a "3" in the air when trying a brush at Ammo Knights.
 * Mr. Grizz's original name was Bear #3 and The boss fight against Mr. Grizz is entitled The Ursine Anomaly #3.