Rovio launches Christmas song, adds 24 levels and new power-ups to Angry Birds Rio

Curl up with some hot cocoa and a holiday song from Finnish mobile games developer Rovio. The team has just updated Angry Birds Rio, its marketing tie-in with the 20th Century Fox animated film Rio. The fresh content pack brings 24 new levels and power ups, including a “special delivery” TNT Drop, Samba Burst, Sling Scope laser targeting and Super Seeds to supersize your birds.

There are twenty free power ups in total to boot from, with an additional power up added each day. Plus, you can collect stars to unlock eighteen special Star levels and earn feathers to unlock six Mighty Eagle levels. Rovio also created an Angry Birds-themed holiday song titled “Fly Me Home Tonight” in honor of the festive season…

According to a post over at the official Rovio blog, all proceeds from downloads of the song go to Save the Children, internationally active non-governmental organization that promotes children’s rights, provides relief and helps support children in developing countries.

Rovio explains:

These clubs encourage kids to play and have fun while also learning key life skills that will improve the quality of life for them and their families. It’s a great cause, and we’re proud to support it.

As for the Rio content update, it’s free for gamers who previously purchased Angry Birds Rio for the iPhone / iPod touch or its HD counterpart for the iPad and iPad mini.