 Japanese title card · “The Space Colony ARK Battle” | |
| Series | Sonic X (ソニックX), TMS Entertainment |
| Season | Season 2 (2003–2005) |
| Episode | Season 2, episode 11 · no. 37 of 78 |
| English title | “Robotnik’s Revenge” (4Kids) |
| Japanese title | スペースコロニーアークの戦い (Supēsu Koronī Āku no Tatakai, “The Space Colony ARK Battle”) |
| First aired (Japan) | 14 December 2003 · TV Tokyo |
| First aired (US) | 27 November 2004 · Fox Box / 4Kids TV (Fox) |
| Directed by | Mamoru Enomoto |
| Written by | Kiyoko Yoshimura |
| Storyboard | Toshihiko Masuda |
| Previous episode | Shadow World (S02E10) |
| Next episode | Showdown in Space (S02E12) |
Shadow SagaGerald’s revenge
Robotnik’s Revenge is episode 11 of Season 2 of Sonic X and the 37th of the anime’s 78 episodes. In Japan it is called “The Space Colony ARK Battle” (スペースコロニーアークの戦い). It premiered on TV Tokyo on 14 December 2003, and the 4Kids English version followed on Fox Box / 4Kids TV (Fox) on 27 November 2004. It was directed by Mamoru Enomoto and written by Kiyoko Yoshimura.
Synopsis
The rocket delivers the heroes to the Space Colony ARK, and Tails hands Sonic a fake yellow Emerald: slipped in among the real ones, it should soak up their energy and blow the Eclipse Cannon apart. Eggman, holding Amy hostage, demands the gem, but he can spot a fake; he seals Sonic in a capsule rigged to explode and fires it into space. Sonic gets back aboard with Chaos Control.
While Sonic squares off against Shadow, Knuckles goes after Rouge for the Master Emerald, and their fight ends with the two on friendlier terms. When Eggman tries to fire the Cannon, it fizzles, and a recording of Gerald Robotnik plays instead: the ARK will crash into Earth within half an hour – his revenge on humanity for Maria.
On Earth, after a string of dead ends, Mr. Stewart and Scarlet Garcia track down a former G.U.N. soldier who tells them, with deep regret, that he was the one who shot Maria – just as men in black arrive to keep Project Shadow buried.
Key Moments
- Gerald Robotnik’s revenge: the ARK will crash into Earth.
- Knuckles and Rouge settle their differences.
- A former G.U.N. soldier confesses to Maria’s death.
Trivia
- The English title refers to Gerald Robotnik, whose fifty-year-old revenge plan drives the episode.
- On home video: Japanese DVD/VHS volume 10 (Victor Entertainment, 21 April 2004); 4Kids/FUNimation volume 8, Project Shadow (15 November 2005); the Chaos & Shadow Sagas DVD set (2008); and Discotek’s Sonic X Collection 1 (2016) and complete-series Blu-rays.
Watch the Episode
The full 4Kids English episode, uploaded by TMS Entertainment’s official “Anime! on TMS” YouTube channel (checked 6 November 2026).
Part of our Sonic X Season 2 guide. See the Sonic X series page for the cast, theme songs and home video.
Sources: titles, credits and air dates from Wikipedia’s list of Sonic X episodes and Sonic Wiki Zone, cross-checked with each other and with Luke’s original Sonic Scene episode table; synopsis written for Sonic Scene from the episode, Wikipedia’s summary and Sonic Wiki Zone’s plot notes; title card and screenshots via Sonic Wiki Zone, copied to our media library.