The shooter levels differ from each other: sometimes you can float around the screen and shoot in both directions, other times you are flying in a set direction in a more on-the-rails fashion.The Omega Factor mentioned in the title is actually a simple upgrading system for your weapons. During the beat-em-up levels you can walk around freely and your flying ability is limited to short bursts.

Armed with a strong punch, rocket powered feet and the ability to shoot laserbeams from your fingers, arms and behind, you set off on a quest against all sorts of evildoers from the Astro Boy series.The game has two distinctive types of levels: the more prevalent beat-em-up levels and the shooter-esque levels. You play as the young, boylike robot Astro Boy, a true mechanical pacifist who's biggest dream is that one day humans and robots can coexist in peace.

Astro Boy: Omega Factor is a side-scrolling action game based off a 2003 remake of Osamu Tezuka's classic Astro Boy anime and manga series from the 1960s.

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