Birdday Party

Birdday Party is the seventh Angry Birds episode. It celebrates the 2-year anniversary of Angry Birds of 2011 and the 3-year anniversary of Angry Birds 2012, taking place inside a fantasy world filled with candy, birthday cakes, and other sweets, as opposed to the realistic environments seen in previous episodes. The episode itself serves as the eighteenth and nineteenth themes of the original game, and marks the 300th level mark with 18-15.

In this chapter, the Pigs steal the eggs as per usual, but decide to put them in a piece of the birds' Cake, which they snatch as well.

Theme 18

 * 1) Theme 18-1
 * 2) Theme 18-2
 * 3) Theme 18-3
 * 4) Theme 18-4
 * 5) Theme 18-5
 * 6) Theme 18-6
 * 7) Theme 18-7
 * 8) Theme 18-8
 * 9) Theme 18-9
 * 10) Theme 18-10
 * 11) Theme 18-11
 * 12) Theme 18-12
 * 13) Theme 18-13
 * 14) Theme 18-14
 * 15) Theme 18-15

Theme 19

 * 1) Theme 19-1
 * 2) Theme 19-2
 * 3) Theme 19-3
 * 4) Theme 19-4
 * 5) Theme 19-5
 * 6) Theme 19-6
 * 7) Theme 19-7
 * 8) Theme 19-8
 * 9) Theme 19-9
 * 10) Theme 19-10
 * 11) Theme 19-11
 * 12) Theme 19-12
 * 13) Theme 19-13
 * 14) Theme 19-14
 * 15) Theme 19-1523

Sponsored Activities

 * Fans in the US celebrated by heading over to their local Barnes & Noble, which had special events and giveaways from 11 AM to 3 PM. Angry Birds aficionados joined a scavenger hunt to find the Mighty Eagle or enter a raffle to win special Angry Birds prizes.
 * Toys ‘R’ Us got into the “birthday” spirit. Fans got 25% off Angry Birds plush toys plus a code that unlocks an Angry Birds Google Chrome bonus level.
 * For Angry Birds fans in Japan, Rovio CMO and Mighty Eagle Peter Vesterbacka gave a special presentation at the Apple store in Ginza.
 * The Forbidden Planet stores in the UK also celebrated Angry Birds’ second birthday with merchandise previously unavailable in the UK.

Trivia
Sources http://www.rovio.com/en/news/blog/109/happy-birdday http://www.angrybirdsnest.com/angry-birds-happy-birdday-update-coming-december-11th/
 * This is the first theme in Angry Birds that is considered abnormal.
 * This is the first Angry Birds episode that involves an anniversary.
 * This episode had the fewest amount of levels in the game, with only 15, before the extra levels were added on December 11th, 2012.
 * The title is a reference to the saying "Birthday Party", when the birds are having their birthday party.
 * This is also considered the first of the episodes to have its pun-based title on a Bird, rather than a Pig, Eggs, or eating.
 * This is the first time the Orange Bird and Pink Bird appear in the original Angry Birds game.
 * Updating this episode not only provided players with all the episodes that are now unlocked without having to clear the first episode, but all the cutscenes were updated to the design shown in the Google Chrome Verison of Angry Birds.
 * This episode was launched for the game's second anniversary.
 * This is the first Angry Birds episode that is based on food with the second being Utopia in Angry Birds Space.
 * On the final level, there is a rainbow-colored slice of cake. Getting it will display a new achievement called "Cakemonger".
 * This episode received an update on December 11, 2012, that shows 15 more levels, and chapter 19 is moved from Bad Piggies to this episode. Also, 15 more levels of the Bad Piggies episode have been added.
 * It is possible that next year in December 2013, they will have even more Birdday Party levels for Angry Bird's 4th anniversary.
 * This update shows the White Bird's and the Boomerang Bird's new sprites. It also shows new corpse sprites for the Birds.
 * Birdday Party was updated with 15 new levels to celebrate Angry Birds' 3rd anniversery in 2012. These new levels feature the Pink Bird (appearing for the first time in the original Angry Birds) and new features like TNT Cakes. These levels have the number "19" for the theme number, so the Bad Piggies episode was renumbered accordingly. Also, there is a new hidden golden egg in level 19-14. Finally, the King Pig Mode was updated to introduce an equivalent pig for the Pink Bird. Also, the update now includes the shaking background when the Black Bird, the White Bird's eggs and TNT crates explode, and when the Orange Bird inflates. (the shaking background doesn't misplace and damage nearby Blocks like the birdquake power-up, though.)