Bad Piggies lets you play the bad guy (pictures)

A complete departure from the Angry Bird's game mechanic, Rovio's Bad Piggies lets you play as the bad guys, building contraptions that will help them steal the bird's eggs.

In Bad Piggies, you make contraptions, then send them through the level trying to stay intact while grabbing star boxes. Just watch out for the TNT boxes.

When you start each level, you'll need to build a machine that will survive the level with the parts provided.

At the end of each level, you get a star rating like Angry Birds. Don't be surprised if you try the same level over and over again.

You get a little help building your vehicle for the level at hand with visual instructions if you need them.

After several tries, if you still can't build a machine that works, you have the option to hire a "mechanic" to build a certain number of machines for you.