Source: http://www.gamespot.com Angry Birds’ Rival Mario Kart releases with $65 in-app purchases Rovio Entertainment’s free-to-play game released December 11, 2013 across iOS, Android, Windows Phone 8, and Blackberry 10 devices. Angry Birds Go!, the free-to-play kart racer spin off of the popular paid version of the downloadable strategy series launched on December 11, 2013. The game […]