Crawl is one of Dr. Robotnik's second-generation Badniks. Its head looks insectoid, but beyond that it has no other insect features. Its grey-shelled body is rotund and it has short limbs. One limb bears a large, crab-like pincer while the other sports a bumper shield to repel attacks. The Crawl is vulnerable from behind and moves painfully slow, so catching it off-guard is not difficult.
Sonic the Hedgehog once dressed up as a Crawl Badnik in order to access a Badnik Processing Plant along with the other Freedom Fighters in The Great Escape!. One also featured on the cover of Issue 11, another as a pin-up in Issue 94 and a final one was already defeated by the time it was seen in The Seven Badniks. The only Crawl to ever see any action was in Enter the Cybernik, but was destroyed by Shortfuse the Cybernik before it could do any damage.