Don't be alarmed, but birds are taking over. Tiny birds, angry birds, and now flightless Antarctic birds. If only Alfred Hitchcock were alive to see this.

The latest fowl to fly to the top of the App Store charts Penguins--specifically, Air Penguin, which currently holds the No. 1 spot. It's ahead of Cut the Rope, ahead of Tiny Wings, and even ahead of all three Angry Birds games (including the recently updated-for-Easter Angry Birds Seasons).

Why all the fuss At first I wasn't quite sure. Air Penguin is a pretty straightforward tilt-control game--not unlike Doodle Jump, but putting two axes into play instead of just one. It's your job to guide your bouncing, somersaulting, sliding, occasionally flying penguin from one ice floe to the next, tilting your iDevice left, right, forward, and backward to steer him. One bad landing and you plop into the water' game over.

Along the way you'll encounter increasingly difficult obstacles: smaller ice floes that are harder to land on, floes that are already cracked (and therefore can't be landed on), jumping swordfish, and, of course, sharks (which leap out of the water in a suitably fearsome fashion).

Fortunately, there's help along the way as well: turtles to ride, fish to collect, whale blow-holes to land on (for a quick jump-boost), and so on.

The fish you collect (or purchase in-game) can be exchanged for special power-ups. One of them gives you a one-time rescue from the water' another temporarily "disables" the sharks.

Air Penguin is fun, no doubt about it. Addictive, too, pushing all the right "just one more time" buttons. I can't say it's captured my attention the way, say, Tiny Wings did (or even Cover Orange), but it's definitely a nice diversion--and an easy impulse buy at 99 cents.

What do you think of Air Penguin Best game since Angry Birds, or just the flavor of the moment

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Rick Broida, a technology writer for more than 20 years, is the author of more than a dozen books. In addition to writing CNET's The Cheapskate blog, he oversees BNET's Business Hacks. Rick is a member of the CNET Blog Network and is not an employee of CBS Interactive. Deals found on The Cheapskate are subject to availability, expiration, and other terms determined by sellers.