Flying Chopper

This nameless Crystal Egg Zone badnik, created by Dr. Ivo "Eggman" Robotnik, is the only robotic foe encountered by Sonic in Crystal Egg Zone during Sonic the Hedgehog 2 (8-bit).

Bearing a resemblance to the Chopper model badniks from Green Hill Zone, these hovering robotic fish are just one more mark of weirdness within the already rather odd crystal fortress that is Robotnik's final stronghold in this game. The badniks simply drift backwards and forwards, chomping vigorously on empty air. It's actually quite hard to get hit by one, as they rarely fly low enough to menace Sonic and show no reaction to his presence underneath them. Dispatch them with a quick spin jump.

Like other robots in 8-bit Sonic games, no animal friends pop out of the machines when they are destroyed. Whether these badniks canonically don't contain organic batteries, or the escaping critters simply weren't shown due to programming limitations, is not known.