 Japanese title card · “Mayhem! 6 Chaos Emeralds” | |
| Series | Sonic X (ソニックX), TMS Entertainment |
| Season | Season 1 (2003–2004) |
| Episode | Season 1, episode 23 · no. 23 of 78 |
| English title | “Emerald Anniversary” (4Kids) |
| Japanese title | 大混乱！６カオスエメラルド (Daikonran! Shikkusu Kaosu Emerarudo, “Mayhem! 6 Chaos Emeralds”) |
| First aired (Japan) | 7 September 2003 · TV Tokyo |
| First aired (US) | 6 March 2004 · Fox Box (Fox) |
| Directed by | Keiko Oyamada & Sim Sang-il |
| Written by | Chinatsu Hōjō |
| Storyboard | Toshihiko Masuda |
| Previous episode | Little Chao Lost (S01E22) |
| Next episode | How to Catch a Hedgehog (S01E24) |
AnniversaryFilmdom City
Emerald Anniversary is episode 23 of Season 1 of Sonic X and the 23rd of the anime’s 78 episodes. In Japan it is called “Mayhem! 6 Chaos Emeralds” (大混乱！６カオスエメラルド). It premiered on TV Tokyo on 7 September 2003, and the 4Kids English version followed on Fox Box (Fox) on 6 March 2004. It was directed by Keiko Oyamada & Sim Sang-il and written by Chinatsu Hōjō.
Synopsis
Nelson has found the perfect wedding-anniversary present for Lindsey: a ring the jewellers have made from the purple Chaos Emerald. He invites Chris and his friends to Filmdom City to watch him surprise her, and Tails loads three of the gang’s Emeralds into the X-Tornado for the trip. At Area 99, meanwhile, scientists unveil Project Beetle, a robot built to fight Eggman.
Rouge and Topaz, who saw Nelson at the jeweller’s, are after the gem, and so is Eggman. The surprise turns into a free-for-all across the film studios, with Sonic, Tails and Knuckles – who happens to be holidaying in the city – chased by Eggman and his robots through a dinosaur set, an outer-space set and an ocean set.
Eggman’s robot Weazo corners Sonic with its flamethrowers until Knuckles smashes a glass tank and the flood shorts it out. Eggman still escapes with the Emerald, so Nelson’s present is gone, but the anniversary is a happy one all the same, and Knuckles decides to come back to Station Square. Rouge, left with nothing, vows to get the Emeralds whatever it takes.
Key Moments
- The purple Chaos Emerald is set in Lindsey’s anniversary ring.
- Area 99 develops Project Beetle to fight Eggman.
- A chase through Filmdom City’s film sets.
Trivia
- The Japanese title, “Mayhem! 6 Chaos Emeralds”, counts the gems found so far.
- On home video: Japanese DVD/VHS volume 6 (Victor Entertainment, 17 December 2003); 4Kids/FUNimation volume 6, Countdown to Chaos (12 April 2005); the Chaos Emerald Chaos 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 1 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.