Omega Arm

Omega Arm is one of the Power Formation manoeuvres used in Sonic Heroes and the Wide Power attack used by Team Dark. When using this technique, E-123 Omega launches different rounds of artillery from his build-in arm cannons in all directions, with variating effects depending on Omega's level.

Description
In order to use Omega Arm, Omega must have performed two successive ground-based combo attacks while in Fire Combination. After having performed two ground-based combo attacks, Omega releases his teammates from his grib, and stands in one place while spinning his robotic torso around. While doing so, Omega unleashes a full-force weapon barrage from his build-in arm cannons, which he transforms according to the weapon he uses. This results in a spiral-like wave of artillery that damages anything caught within its radius. To perform this technique in gameplay, the player has to press the Attack button three times in succession.

By collecting red Power Cores during gameplay, the player can increase the power, nature and radius of the Omega Arm:
 * Level 1: Omega transforms his hands into machine guns and fires machine gun bullets from his arm cannons. Radius and damage is slightly increased from Level 0.
 * Level 2: Omega transforms his hands into flamethrowers and fires flames from his arm cannons. Radius is increased to about a couple of meters away from the center and damage dealt is about double.
 * Level 3: Omega retracks his hands into his arms and begins firing drills-like missiles from his arm cannons for a few seconds that creates small explosions. Attack radius and damage is at maximum.