Eeliotte is a variety of Badnik created by Dr. Eggman, encountered by Sonic or Tails in Sonic the Hedgehog Triple Trouble.
Exclusively appearing as the only enemy in Tidal Plant Zone, these Badniks swim back and forth in the underwater chambers of the Zone and are multi-segmented, similarly to a Caterkiller or Crawlton. Like with the aforementioned Badniks, the player must aim for the head when attacking them. The segmented parts are coursing with electricity similar to an electric eel, therefore attacking these segments will result in harm to the player.
Like other robots in 8-bit Sonic games, no animal friends pop out of these bots when they are destroyed. Whether these Badniks canonically don't contain organic batteries, or the escaping critters simply aren't shown due to programming limitations, is not known.