There's been a bazillion dual stick shooters released on the App Store since the days of iDracula, but there's just something about the Geometry Wars games that always have me playing them more than everything else in that genre. I even fought through playing a ton of the (now super defunct) Geometry Wars: Touch without widescreen support. Well, Geometry Wars 3: Dimensions Evolved [$2.99] is a worthy (or, arguably better) alternative.
It's loaded with particle effects, bright graphics, and tons of game modes between endless arenas and a more structured level-based simple player mode. Hell, Carter even gave it five stars in his review.
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This is a seriously great game for three bucks. It goes on sale every once in a while, so you might have already picked up the game on the cheap, but, if not, get on that.

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