The popular holiday-themed Angry Birds spin-off Angry Birds Seasons has just received a Christmas update that brings 25 new levels, just in time for the festive season.

The latest update brings a holiday advent calendar, with one new level available each day, special seasonal surprises and the new Mighty Eagle to help you through difficult levels.

The Angry Birds Seasons Christmas update adds to the growing number of levels already available, including Halloween, St Patricks Day, Valentines Day and the Moon Lantern Festival.

Angry Birds Seasons is compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later.