Rovio’s Angry Birds has reached a major milestone. The company has hit 500 million downloads in under 2 years since the game launched. Angry Birds is a mobile game where players uses a slingshot to throw birds at pigs that stole their eggs. Angry Birds has stayed at the top of the charts since they launched for the Apple iPhone on December 11, 2009.

Talouselämä is a business magazine in Finland that published information about Angry Birds game development company Rovio. Rovio is planning to go public in New York according to the article. Rovio Chairman Kaj Hed said that the company’s $42 million in funding was a direction that step. Hed is the father of Rovio CEO Mikael Hed.