Angry Birds: Seasons

Unlockables:
Big Present Stage         Clear all levels with three stars result
Golden Egg Stage          Obtain the golden egg on level 1-13
Special trailer           Clear all levels

Unlockables (Hogs and Kisses):
Level 16, 17, 18: Beat all 15 levels and then press the "Like"
button in the screen next to the 15 levels.

 