anime
geo and omega-xis

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Below is the capabilities of Omega-Xis on his own, including several transformation he takes when he appears as Mega Man's buster hand in the first and second game.
EM Wave Change - This allows Omega-Xis to merge with Geo to become Mega Man. In the first and second games, a wave hole is required to perform the change (the Star Force equivalent of a jack in point); in the third game, the Trans Code is required for this to be used, and Wave Changing can be used anywhere. In the anime, Geo can perform it almost instantly anywhere with Omega-Xis. This also allows Omega-Xis to use his full strength. This is a skill all FM-ians have, although Omega-Xis is actually an AM-ian.
Wave Conversion - Unique to AM-ians, Omega-Xis can convert any humans, besides a compatible human, into living EM-Waves. Omega-Xis used this ability on Kelvin (Geo's father) and everyone else on Kelvin's crew to extend their lifeline and allow them to escape the FM-ians. It is unknown if this extends to only humans.
Anti-Hypnosis - Like any EM Being in the series, Omega-Xis is immune to hypnosis and can only be fully be taken over by the compatible AM/FM-ian.
Beast Slap (ビーストスイング Beast Swing) - In the third game, the Hunter VG allows for Geo to materialize Omega-Xis as his Wizard, and through the course of the game, the player can engage in mini-games where Omega-Xis is materialized and can attack the numerous opponents approaching Mega Man from all sides. In-battle, this also is a Battle Card, where Omega-Xis temporarily takes Mega Man's place while executing the attack, a 2x3 panel sized swing.
Area Eater (エリアイーター) - A Battle Card from Mega Man Star Force 2 has become a Support Card that Omega-Xis can use. Omega-Xis swing his claw to temporarily "clear" a row of panels, resulting in a smaller battlefield. It acts similar to Mega Man Battle Network's Area Grab.
Double Eater (ダブルイーター) - Same as Area Eater, except Omega-Xis clears 2 rows.
Transformation abilities