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This location exists primarily or exclusively within the IDW Publishing continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

Seaside City[2] is a location that appears in the Sonic the Hedgehog comic series and its spin-offs published by IDW Publishing. It is a coastal city where the Chaotix Detective Agency's office is located.


Seaside City is a large city located at the coast of a bay. It consists of both low and high buildings, modern office buildings, a downtown, and humble outskirts for smaller buildings. The most characteristic part of the city is the docks at the bay.


Crisis City and Big's Big Adventure

The Chaotix were in Seaside City when it was attacked by Zombots. When the Chaotix fled from their office, they noticed that the Faceship had started the Zombot outbreak by pouring the Metal Virus down on one of the skyscrapers. Deciding to carry out the evacuation of Seaside City, the Chaotix split up and and began saving uninfected residents in various parts of the city. Vector also contacted Amy and had her send them a Rescue Shuttle and support. Over the course of the evacuation, Sonic came to Seaside City as well and helped occupy the Zombots. Meanwhile, the Chaotix led the evacuating inhabitants down to the docks, where a Rescue Shuttle sent by the Restoration awaited them. Just as the evacuees had been brought to safety though, Charmy flew back into the city in hopes of saving one more person, whom Vector had to trap behind several cars after that person displayed signs of a Metal Virus infection. When Charmy found that person though, she had already become a Zombot. Charmy was then overwhelmed by Zombots and infected with the Metal Virus. Having no choice, Espio and Vector departed in the Rescue Shuttle, along with the survivors, while Sonic went to find Charmy. Unfortunately for the hedgehog, he was not able to find the bee anywhere and was forced to take off.[2]

Big later visited Seaside City trying to find Froggy and noted the city's spooky and empty atmosphere. While the cat had an unsuccessful search, a Zombot Charmy flew around aimlessly.[3]

Out of the Blue

The Chaotix are swamped with work, from Sonic the Hedgehog #31.

Some time after Super Sonic and Super Silver reversed the effects of the Metal Virus, the Chaotix returned to work at their office in Seaside City. They became swamped with work on missing persons cases. Cream, Vanilla, Cheese, Chocola and Gemerl came by the office to gift the trio with treats for their hard work. Despite the kind gestures, the Chaotix had no time for it as they did not even have time to properly work. Vanilla took it upon herself to take over for the detectives; she planned to handle calls with Cream and update the trio as Gemerl processed information of the missing people. Realizing they could go do their thing, the Chaotix set off to find the missing people.[4]

Trial by Fire

Back in their office in Seaside City, the Chaotix would learn about a strange attack on Central City from the newspaper.[5]

Points of interest


  • The Chaotix's office is located on the corner of Oshima Street and Naka Drive, a reference to Naoto Ohshima and Yuji Naka, respectively.


  1. Sonic the Hedgehog #18, "Story So Far..."
  2. 2.0 2.1 2.2 2.3 2.4 Sonic the Hedgehog #17, "Plague"
  3. 3.0 3.1 3.2 Sonic the Hedgehog Annual 2020, "Big's Big Adventure"
  4. Sonic the Hedgehog #31, "Recovery, Part 1"
  5. Sonic the Hedgehog #47, "Trial by Fire, Part 3"