This character 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.
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The Metarex Viper (メタレックス・バイパー Metarekkusu Baipā?) is a character that appears in the anime series Sonic X. It was a model of Metarex that combined snake-like and humanoid qualities.



Metarex Saga

A force of Metarex Vipers were assigned to a planet conquered by the Metarex to manage a facility that was producing fake Chaos Emeralds for the Metarex war effort. This facility was discovered by the crew of the Blue Typhoon, who engaged the Vipers in battle and claimed the Chaos Emerald.[2]


The Metarex Vipers have very persistent personalities.[1]

Powers and abilities

The Metarex Vipers were evidently not among the more powerful Metarex, as they could be destroyed without the use of the Sonic Power Cannon.


  • The Metarex Vipers resemble robotic versions of the mythical Nāga.


  1. 1.0 1.1 1.2 media:Sonicx-ep62-eye2.jpg
  2. Masaki, Hiro (12 November 2005). "An Underground Odyssey". Sonic X. Season 3. Episode 62.