Angry birds : Rio, Valentine's day, St Patrick's day, Halloween , Christ...

Angry Birds is a puzzle video game developed by Finland-based Rovio Mobile : angry birds , angry birds seasons, and angry brids rio :

-Seasons introduced 25 Christmas-themed levels.
-special Halloween edition.
-St. Patrick's Day update.
-Valentine's Day update
-Angry Birds Rio, a stand-alone edition tying into the release of the 20th Century Fox animated film Rio..........................

Tested on an android phone : Nexus s ( by google)