Caterkiller (ナール - Nāru)
Games- Sonic 1 (MD), Sonic 1 (GG), Sonic 1 (MS), Sonic 1 (Tiger Watch)
Levels- Marble Zone, Scrap Brain Zone
Boss Type- Badnik
Caterkillers are one of the deadlist Badniks, they crawl around the ground. Over then there head, they are covered in spikes which make attacking in anything else then a roll hard.