This object exists primarily within the Sonic the Comic continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

Radioactive Meta-Clay[1] is a substance that appears in the Sonic the Comic series published by Fleetway Editions. It is the material that Mister Shifter is made of.


Radioactive Meta-Clay is a radioactive, purple, goo-like clay. It is a highly maleable substance which can stretch like rubber or change consistency, becoming as hard as concrete or as soft as water.[1]


  1. 1.0 1.1 Sonic the Comic #87, "Mister Shifter"

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