Rovio is out with new levels for its popular game Angry Birds Seasons, along with a cute and bubbly (literally) new pink bird to keep you company. Based on the "back to school" theme (since US schools are reopening after the vacations), version 2.5 offers 20 new levels in a schoolyard setting, as well as a new pink bird. After impact, this avian weapon causes surrounding objects to float up for a while and then come crashing down, causing more damage in the process. While Rovio has indicated that the update will be available for both Android and iOS, it's currently available only for the latter. This new addition is priced at $1 (approx Rs 55), whereas the iPad-only Angry Birds Seasons HD can be downloaded for $3 (~Rs 160) from the iTunes App Store. Check out the teaser video below for a better idea of the pink bird's powers.