|This character exists primarily or exclusively within the Sonic X anime or comic continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
E-57 Clurken is a jellyfish robot created by Doctor Eggman. Appearing only in episode 16 of the anime series Sonic X, Depths of Danger, it was created to stop Sonic the Hedgehog and his friends from acquiring Chaos Emerald located underwater.
Clurken was 27 meters (90 feet) tall and weighed 12 tons.