It looks like everyone’s favorite themed, fowl-flinging game — Angry Birds Seasons — has been updated to celebrate the March 17th holiday, St. Patrick’s Day. The game has been updated with fifteen new levels, and although the fledglings aren’t actually packing pig-slaying shillelaghs (don’t worry, they are in our heads), the game is littered with shamrocks, leprechaun hats, and pots o’ gold. The company definitely has a little bit of that “luck of the Irish” this month, as today they announced $42 million in Series A funding — led by Skype co-founder Niklas Zennström’s company, Accel Partners. Ina Fried of Mobilized reports that Rovio was a bit hesitant to take on venture partners. “It took a while to convince them of the ways we might be able to help,” said Rich Wong of Accel Partners. “They didn’t really need the capital.” Rovio intends to use the funding to help expand and grow the company. “All of these people have been there to build billion dollar companies,” said Rovio’s Mikael Hed. “While being valued at a billion or several billion dollars isn’t an end goal in itself, it’s an interesting metric.” If you’re interested in helping Rovio reach a billion dollar valuation, you can head on over to your mobile platforms app store and download Angry Birds.