Collaboration

Collaborations are small partnerships that Rovio did with Angry Birds, they are listed below:

Puzzle vs. Dragons
The birds appear in the game as unlockable characters, it played the same way as the normal Puzzles vs Dragons games but with Angry Birds characters, such as Red, Chuck ,The Blues, Bomb, Matilda, Hal , Terence, Wingman and much other. They were playable for a limited time and came along with levels from the games.

Sonic Dash
Red, Chuck and Bomb were available as unlockable characters, they wore their class accessories from Angry Birds Epic, they could run across the levels just like any character can, but they have their own boost, if they were unlocked within the event, they would be unlocked and playable forever.

LINE Rangers
Red  and Chuck were playable characters in the Angry Birds event, King Pig would appear as a boss.

AFTERLOST (Shōmetsu Toshi)
Costumes of Red and Chuck could be unlocked for the playable characters. Some characters appeared as playable ones with new powers.

PlayerUnknown's Battlegrounds [Mobile] (PUBG)
Various accessories of the birds and pigs can be obtained at the event, the birds could also be thrown into structures with pigs. This event was held from December 10th, 2019 to December 29th, 2019.

Hot Wheels
Hot Wheels launched two character cars: Red and a pig. Red has a pointy tail while the pig one has a smoke pipe set. There's also a road that was released, which contained the Red car, a straight path and Glass, Wooden and Stone arches with an image of Foreman Pig, Corporal Pig and King Pig, respectively.

The person had to topple down the pigs  and reach the end, the toy had a launcher

Lacta
Lacta made a partnership with Angry Birds various times, selling chocolate eggs. In South America, chocolate Easter eggs were sold in Easter (2012, 2013 and 2014), which contained a prize, the prizes of the first partnership was a large plush of Red, the second was a plush of Red, Chuck and a pig , and the last one was with a bowling game that contained a friction Red and 3 pigs. Other easter eggs also contained a mug of Red.

Fini
Aside from the candies, the company also made three water squirters: Red, Chuck and a Pig, that could be obtained in a promotion or pack.

A Bathing Ape
T-Shirts were made in the style of the ape, along with the ape itself appearing on them.

Finnair
Main Article: Angry Birds Asian Challenge The Angry Birds Asian Challenge was a competition held by Finnair, a Finnish airline. Contestants would submit an application explaining why they were the biggest Angry Birds fans. The top 8 winners won a ride on a customized Airbus A340 plane that was decorated with Angry Birds images.

Nakayoshi
Main Article: Stella: Nana and the Magic English Words

Angry Birds had made a collaboration with Nakayoshi as a promotion to the release of Angry Birds Stella called, Stella: Nana and the Magic English Words, a manga series that was released on October 2014. However, this serialization was ended on April 2016 before the release of The Angry Birds Movie.

Duolingo
Duolingo is a foriegn language learning app developed by Luis von Ahn, Severin Hacker on November 30th, 2011. In February 18, 2020, Rovio and Duolingo reached a partnership where both apps would feature each other's mascot, [https://duolingo.fandom.com/wiki/Duo#:~:text=Duo%20is%20the%20official%20mascot,knowledge%2C%20wisdom%2C%20and%20learning.&text=In%20French%20Duo%20is%20a%20chouette%2C%20which%20is%20the%20barn%20owl. Duo] and Red. In AB2, Duo was a reskinned version of the duck spell and Red was animated into the app with Duo when you reach a correct answer streak or complete a lesson.