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.