Sonic the Hedgehog
The Asteron is an enemy from the Sonic the Hedgehog series, that first appeared in Sonic the Hedgehog 2. They are a hovering starfish-type Badnik models created by Dr. Eggman. Asterons are simply designed and are located usually on walls and are able to self-destruct and fire its five sharp parts in many directions.
Asteron has a simple, flat starfish-shaped appearance. Its core body is colored light-yellow and in the middle of the body is grey hole with red eye on the hole. All five sharp points have grey spears, that are pointing towards five directions. Asteron's appearance in Sonic the Hedgehog 4 is more detailed, even though involving only slight changes.