Angry Birds Seasons

Angry Birds Seasons is a sequel to Angry Birds that have the holiday seasons and they are themed. It introduces the first appearance of the Orange Bird, a bird that forms into a globe.

Gameplay
Angry Birds Seasons is same as the first game, but it has holiday themes.

Trick-or-Treat: This episode features all birds unlocked at once and has lanterns and pumpkins and is spooky themed. There is a ghost Pig that spooked the Birds that you need to get.

Seasons Greedings: This episode features an advent calendar with a quarter of days and has snow, gifts, Santa hats and bells and is wintery-themed. A level is added on every day and the game restricts you when it hasn't arrived yet. The game restricts you to play without any internet connection and you need internet.

Hogs and Kissies: This episode has only fifteen levels and has bows, wings, chocolate boxes and hearts and is valentine-themed. In order to unlock these three locked levels, you must Like the game to unlock these levels.

Go Green, Get Lucky: This episode is same like the third one and has leprechaun hats and beard, shamrocks and gold and is Irish-themed. Like in Hogs and Kissies, players must Like the game to unlock these three locked levels.

Easter Eggs: This episode has only fifteen levels and has easter eggs, bunny mouths and ears and grass. To unlock these three locked levels, you must follow Angry Birds to Twitter.

Summer Pignic: This episode has an advent calendar and is same like Seasons Greedings, except it has thirty days and has picnic items, summer hats, summer items and space blocks and this episode is summer and space-themed. Like Seasons Greedings, the game restricts you to play these levels as you need internet.

Mooncake Festival: Unlike Mighty Hoax, there are 20 episodes and there are some Golden Mooncakes. It has Chinese lanterns, bunnies and the pigs are wearing the Chinese hats, like a general hat and a brave warrior's hat.

Ham'o'ween: It's another Halloween episode. It introduces skeletons and jack-o-bombs. It introduces the Orange Bird, a bird that turns round if you tap on the screen or let it stay.

Wreck the Halls: This is another advent calendar, unlike Summer Pignic and Seasons Greedings. The Orange Bird still appears.

Year of the Dragon: This is the first pack released in 2012. It features the Mighty Dragon, a bird/reptile hybrid who only appears in the game.

Cherry Blossom: This is still in Asia, but the Mighty Dragon doesn't appear, because he is from China. This level is in Japan.

Piglantis: All of the stages have waters. The egg of the White Bird doesn't explode in water until it touches anything.

Differences
Tapping the birds on the main menu never make sounds.