Spiny

The Spiny was a second generation Badnik created by Dr. Eggman in Sonic the Hedgehog 2 for the Sega Genesis.

Physical Appearance
The Spiny is one of a select few Badniks whose designs are not based on any animal or living creature. Used to guard the Chemical Plant Zone, these robots would scuttle about their territory using the five grippers located on their underside. These grippers were so strong, that not only could they crawl along the ground, they could also be seen up on high walls, without any hamper to their speed or attack. The body of the Spiny was extremely small, with its two photo-receptors jammed close together near a red spout at the top. From this spout prongs shout up around it, protecting it from the volatile chemicals it was creating inside its body. Standard Spiny colors were mainly gray with a bit of red mixed in, especially for the spout region.

Attack Pattern
The Spiny will crawl around its domain, waiting for enemies to approach. When a target is sighted, its prongs will unfold from the top like a flower blooming. After a short time upon opening, they will shoot out a ball of extremely strong acid toward the target. Sonic made sure to time his jumps just right to destroy or avoid the acidic robot.