|This article's subject exists primarily or exclusively within the Sonic X continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
The Fight for the FoxBox was a 2003 half-hour crossover special produced by 4Kids, in which ran on the FoxBox block on Fox (FoxBox was later rebranded as 4Kids TV before moving to The CW). The crossover involved Sonic X along with other top rated FoxBox shows such as Teenage Mutant Ninja Turtles and Kirby: Right Back at Ya!. The special can be viewed on YouTube and is also available on a rare promotional DVD.
A mysterious voice informs the antagonists of the shows involved that he stole the FoxBox "TV codes" and the block cannot resume airing without the code. He gives the codes to the five villains which are Dr. Eggman, Shredder (Teenage Mutant Ninja Turtles), King Dedede and Escargoon (Kirby: Right Back at Ya!), Dial Bolic (Ultimate Muscle: The Kinnikuman Legacy) and Dr. K (Cubix: Robots for Everyone).
In Sonic's segment, Sonic smashes into Dr. Eggman's base, where Eggman asked what he was doing here and Sonic responded that he believed that Eggman had one of the FoxBox broadcast codes. Eggman confirmed the hedgehog to be correct and digitally implanted the code into Decoe's memory and would only give it out when ordered to do so. Sonic taunted at Eggman to ask Decoe to read it out; the doctor replied he would never do so only to realize that Decoe misheard him and read the code aloud (9HT6A). Infuriated, Eggman ordered E-13 Guardbot to attack Sonic only for it to attack the machine in the center of the base, causing the base and its surroundings to be covered with a blast of energy.
The protagonists of the other shows later obtain all the codes from their respective antagonists, and put them up on a website called Savethefoxbox.com (which is defunct) that was set up by April O'Neil. Towards the end, the antagonists inform the mysterious voice that they couldn't keep their codes safe from the heroes. So the evil voice yells at them, the identity of the mysterious voice turns out to be Wayne Cramp (from The Cramp Twins). The special ends with a non-conclusive ending with Wayne pushing his brother Lucien down the stairs, with an appearance of The Cramp Twins' logo and is followed by promotional material.
- Sonic X
- Teenage Mutant Ninja Turtles (2003)
- Kirby: Right Back at Ya!
- Cubix: Robots for Everyone
- The Cramp Twins
- Shaman King (footage from the show appears on the TV of the Ninja Turtles)
- Funky Cops
- Ultimate Muscle: The Kinnikuman Legacy
- The special relied mostly on stock footage of the shows involved, with new voice overs from the voice actors.
- This marks the first cross-over involving Sonic and Kirby, or any Nintendo character for that matter.
- Since The Cramp Twins wasn't produced by 4Kids, Wayne and Lucien Cramp are voiced by Marc Thompson and Veronica Taylor instead of Tom Kenny and Kath Soucie, respectively.
-  The special can be viewed on YouTube.