Eggrobo

Eggrobos are common enemies from Sonic the Hedgehog series, as being one of the Badniks created by Dr. Eggman. As having a similar image of their own creator, these robotic henchmen first debuted in Sonic & Knuckles as a common enemy at Sky Sanctuary Zone, where they were launched to certain areas from the uprising Death Egg. After they appear from the background, they float in one place rather than moving around by using the rocket booster on its back, and shoots a straight laser against the nearby enemy using their laser blasters, but can be easily destroyed by Sonic's single jump attack. However, according to Sonic's ending (and Tails' ending from Sonic 3 & Knuckles), it has confirmed that one Eggrobo survived from their destruction, taking over it's creator's place by becoming a secondary major villain for Knuckles' side, using the same but more advanced Egg Mobile boss techniques. After it reappeared at Sky Sanctuary Zone again to capture Knuckles for the last time, it was later destroyed by Mecha Sonic, Eggman's survived Sonic-type robot, and the final boss for Knuckles.

Due to its role of success, Eggrobo later returned to Sonic R as a secret character, alongside with Metal Sonic, Metal Knuckles, Tails Doll, and Super Sonic. It also returned to Sonic Adventure 2 as a downloadable character for the kart race game, while it became a secret character for Sonic Adventure 2 Battle. Eggrobo also returned to Sonic Generations as a common enemy for Sky Sanctuary, which added a rocket launcher attack from its head.

Eggrobos are set to appear in Super Smash Bros. for Nintendo 3DS as common enemies in Smash Run. Unlike the original games, Eggrobos now can move around while on flight, and aims its blaster to fire lasers at their targeted player.