- For other enemies with the same name, please see Sandworm (disambiguation).
Its appearance is similar to a large centipede. It attacks by jumping out of the sand in the Oil Desert Zone. It has the same name as a previous robot and a similar color scheme to another. Sandworms also have a more violent-looking appearance.
- Sandworm is the only badnik that appears in Sonic the Hedgehog 4: Episode II to be an entirely different Badnik with the same name as a previous one.
- Sandworm is also the only Badnik in Sonic the Hedgehog 4: Episode II that is resistant to every type of attack. Therefore, it is impossible to tell if it contains an animal.
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