Asteroid Coaster sub-boss

The Asteroid Coaster sub-boss' is an unnamed sub-boss in the game Sonic Colors. It is fought in Asteroid Coaster Act 6, and resembles a large canister with an eye on top.

Battle
At the end of Asteroid Coaster Act 6, Sonic falls into a circular arena, where the sub-boss awaits. The sub-boss has no method of directly attacking Sonic, but instead damages Sonic using its defenses, generating three electrical shields circling around itself. It also forms a zero-gravity field around itself, into which Sonic must jump. Once caught in the zero-gravity field, Sonic will rotate around the sub-boss, and a Homing attack target will appear, allowing Sonic to attack his enemy. However, Sonic must time his homing attack carefully, because if he mistimes it, he will hit one of the sub-boss' three shields and take damage. Once it takes damage, this enemy's eye, and the zero-gravity field, will disappear, and the process repeats. Three hits are sufficient to destroy this enemy.

Trivia

 * This is the only sub-boss of the game.
 * This enemy is fought in a 2D circular arena, similar to the Rotatatron and Refreshinator battles.