Seasons introduced 25 Christmas-themed levels, one for each day leading to the holiday, similar to an Advent calendar. All versions include the previously-exclusive Halloween levels and are offered as separate, stand-alone paid applications, with the exception of the free, ad-supported Android version; Angry Birds Halloween users on iOS received the Seasons levels as a free upgrade. The Halloween version was given the episode title "Trick or Treat", while the Christmas episode was entitled "Season's Greedings". In February 2011, Rovio released a new Valentine's Day update to Angry Birds Seasons, entitled "Hogs and Kisses", complete with new themed levels and graphics, as well as the option to send Angry Birds-themed Valentine's Day messages through Facebook. In March 2011, Rovio released a new St. Patrick's Day update, entitled "Go Green, Get Lucky",followed by an Easter update, entitled "Easter Eggs", in April 2011 and a summer update, "Summer Pignic", in June 2011.In September 2011, "Mooncake Festival" was released in conjunction with the Chinese Mid-Autumn Festival.In October 2011, "Ham'O'Ween" was released and introduced a new orange bird, known as the globe bird
PC System Analysis For Angry Birds: Seasons Requirements
Angry Birds: Seasons requires at least a Radeon Xpress 1200 Series or GeForce 6200 LE to meet recommended requirements running on high graphics setting, with 1080p resolution. This hardware should achieve 60FPS. 512 MB will also be needed to achieve the Angry Birds: Seasons rec specs and get 60FPS. Another thing to consider is the DirectX capability of your GPU. Angry Birds: Seasons needs a GPU capable of running DirectX 9. We suggest a 14 year old PC to play smoothly.