Quizon were construction robots equipped with multiple tools. Additionally, all Quizon can combine to form a giant snake robot named Serpenter.

Multiple Quizon appear in episode 9 "The Last Resort", where they tear down a resort and rebuild it into a theme park in Eggman's image. After Octoron gets defeated, all of the Quizon combine into Serpenter. Serpenter then gets defeated by an enraged Amy.

E-39 Quizon - Sonic X/ Sega