Asteron is an automated defence drone created by Dr. Eggman. These star-shaped Badniks act as anti-personnel mines which will remain planted on walls and ceilings within Eggman's bases. When an intruder draws near, the Asterons detach from their resting spots and float towards the enemy. After a few seconds, they explode and scatter the steel spikes on the end of their limbs in five directions, skewering anyone unfortunate to be caught in their path.