|This object exists primarily or exclusively 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 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.
- Radioactive Meta-Clay at the Sonic the Comic Wiki