Angry Birds Seasons

Rovio has released 15 new levels to celebrate St. Patrick's Day in their Angry Birds Seasons game. The level pack is complete with Leprechaun hat-wearing pigs and birds, shamrocks, pots of gold and Irish theme music. Those who already own the app can get the update for free.

Everyone else has to fork out $0.99 for the Seasons version of the game, which now includes levels for Halloween, Christmas and Valentine's Day in addition to St. Patrick's Day. All four holiday updates have added over 100 new levels to the original Angry Birds game.

Game developer Rovio is at it again, with 18 new Angry Birds levels commemorating Valentine's Day coming to Angry Birds Seasons. According to reports, the updated expansion pack will make its way onto the App Store on Monday, a full week before the holiday. Those who already have Angry Birds Seasons will get the new levels for free.

The app, last updated on December 10, costs $0.99 and already includes 45 levels for Halloween and 25 Christmas-themed levels. An HD version is also available for the iPad for $1.99. Valentine's Day levels will be contained in a new episode titled "Hogs and Kisses".