Side Order

Side Order is an upcoming single-player campaign mode comprising Wave 2 of the paid downloadable content. It was revealed through a teaser trailer during the February 2023 Nintendo Direct and is scheduled to release in Spring 2024 at the earliest. The mode is intended to be highly replayable.

Release History
Large-scale paid DLC involving Off the Hook was announced as planned to arrive in a later update after 's release in the Splatoon 3 Direct on 2022-09-10. A Tweet was put out by Nintendo of Europe the same day as the Direct reiterating Off the Hook's association with the DLC.

The DLC's name, Side Order, was revealed via a brief teaser trailer shown during the 8 February 2023 Direct. The teaser trailer announced Side Order as part of Wave 2 of the, without a release date. The teaser trailer features Agent 8 in a bleached-out version of Inkopolis Square. Shortly after the Direct, some brief information about Sider Order was listed alongside Splatoon 3: Expansion Pass's release.

A longer gameplay trailer was shown during the 14 September 2023 Nintendo Direct, in which the Octoling player character featured in the teaser trailer is confirmed for the first time to be 's Agent 8; additionally, Pearl and Acht were revealed as major supporting characters. The mode's Floor progression system, Palette skill tree system were briefly shown. After the trailer was shown, the tower visible in both trailers was revealed to be named the Spire of Order, and the mode's release date was stated as Spring 2024.

The same day as the trailer's release, an official Japanese website went online.

On 2023-11-21, an online version of the [|2023 winter issue of the Japanese Nintendo Magazine] was made available for free; pages 42-43 of this issue cover Side Order. An English language version of the issue is also available, though its translation is noted to possibly differ from official localization choices, as the magazine is not intended for the international market.

Splatoon 3: Expansion Pass Teaser Trailer
A teaser trailer revealing Side Order was shown in the latter half of the trailer shown in the February 2023 Nintendo Direct. The teaser trailer opens with a slow pan across a dull, stark white version of Inkopolis Square from, slowly focusing on Agent 8, who is wearing new gear. This altered version of Inkopolis Square features presumed dead or bleached coral; Deca Tower has been replaced with the Spire of Order. A swarm of fish-like objects "swim" around Agent 8 towards the end of the clip shown.

Throughout the trailer, various cryptic static images and short video clips briefly flicker on-screen; the images primarily depict Agent 8 in strange bright white locations, as well as Off the Hook, while the clips seemingly depict biological components such as cells, blood, and organs.

A dull, slightly out-of-tune music box melody with steady electronic percussion accompanies the teaser trailer, which slowly grows more intense; towards the end, someone can be heard speaking.

Side Order Trailer
A Side Order gameplay trailer was shown in the September 2023 Nintendo Direct. The trailer opens with Agent 8 in an updated version of the dull, stark white version of Inkopolis Square alongside the Pearl Drone, a drone resembling Pearl, as the same out-of-tune music box melody featured in the previous trailer plays.

Agent 8 is shown descending into an unknown Floor via a grappling attachment on the Pearl Drone. The Pearl drone, Agent 8's equipment and a new type of unknown fish-like enemy are revealed, then gameplay footage of Agent 8 in combat with the enemies is shown. The new enemies appear to spawn en masse from a black orb-shaped mechanism.

Cutscene footage of Agent 8 and Pearl encountering Acht in an elevator is then shown; within it, Acht introduces themself as an old friend of Marina's. The Floor Selection and Palette screens are shown, then Agent 8 enters the Exposed Winding Floor. Gameplay footage of several different unknown Floors is shown in quick succession, then the trailer abruptly cuts to a clip of Agent 8's octopus ghost entering a crystalized shell resembling their form, seemingly spawning into a Floor. After a cut to black, Agent 8 is shown running in slow motion alongside the Pearl Drone towards a very large six-tiered mechanical contraption; each of its tiers has separate types of protruding components and spins independently of the others. After another cut to black, the mode's name is shown with glitch effects alongside the black coral effects.

Throughout the trailer various scenes depict Floors of the Spire of Order seemingly being spontaneously generated with a Matrix-style code effect. Many walls of the Floors shown appear to have a blocky, black holes reminiscent of a greeble effect. Additionally, Armor pickups and an unknown can-shaped pickup bearing Marina's poster design can be spotted within certain Floors.

Agent 8's ink color is significantly paler compared to the previous trailer; their ink color tint appears to change between clips, seemingly being affected by different Color chips. Their gear appears at various stage of upgrade throughout the trailer; the seemingly well-upgraded versions of their gear includes thin, bright, hologram-like extensions on their Dualies, as well as an eyepiece similar to the See-an-Enemy HUD.

The trailer opens with the same musical box tune heard in the teaser trailer, then cuts to a slow-paced electronic glitch song with prominent industrial percussion. Midway, the song swaps for a more intense electronic song, then at the end into a different slow, echoed song.

Story
The mode takes place in "what has become of" Inkopolis Square, the main hub of, in "what would've happened" if Team Order had beaten Team Chaos.

Agent 8 has been unexpectedly transported to "the world of Order", where they wake up to find Inkopolis Square is suddenly drained of color and uninhabited. They are challenged to ascend the Spire of Order, which has mysteriously replaced the Deca Tower that once stood there. Pearl is also met in Inkopolis Square, having been transformed into a drone called the Pearl Drone, accompanies Agent 8 and assists them in combat. Inside the Spire of Order, the player is allowed to transcend between various floors which rewards them with tokens and enhanced abilities upon completion.

The missions take place in factory-like facility missions where an unknown species of creatures that resemble robotic fish serve as enemies.

Acht, formerly known as Dedf1sh, has "wandered into this world", and appears to travel between Floors alongside Agent 8 inside an elevator within the Spire of Order.

Characters

 * Agent 8

Floors
Side Order's level system consists of the Spire of Order's individual floors.

The following floors have been revealed:
 * Spiraling Slope Floor
 * Exposed Winding Floor
 * Sitting Duck Valley Floor

Quotes
"As for the second wave, we're flummoxed! What is that strange tower? Why has everything turned white and ghostly? What's on that Octoling's mind? We're going to get to the bottom - or maybe the top - of this, so stay tuned for further updates on our research."

- @SplatoonNA on Twitter

"A new single-player campaign called Side Order super jumps to the Splatoon 3 game in the second wave of this DLC. See what has become of Inkopolis Square, the central area featured in the Splatoon 2 game!"

- eShop description

"Challenge yourself to a new single-player campaign, Side Order! See what has happened to Inkopolis Square from the Splatoon 2 game, and what would've happened if Order thwarted Chaos to rule the city!"

- Official DLC webpage

"As Agent 8, you wake up to discover Inkopolis Square has been drained of colour and its residents have gone missing. Alongside a drone who claims to be Off the Hook member Pearl, ascend the floors of the Spire of Order and strengthen your abilities as you climb the tower in a single-player experience that's designed to be replayed over and over!"

- Official UK DLC webpage

Trivia

 * Side Order marks the first single-player campaign to feature a returning Agent as the playable character.
 * Side Order's inclusion of Acht marks the second instance of a non-idol musician making an interactable debut, the first having been Harmony.
 * Side Order was announced in February of 2023, two years after Splatoon 3 was announced.

Etymology
A side order is another term for a side dish, a food item meant to accompany a larger main item as part of a meal. The title is a pun on the mode being a side story about Team Order, the Splatfest team lead by Marina that lost the Final Fest in.