Stella/Angryverse/Classic

Stella, the Pink Bird is a Bird that first appears in the Angry Birds Seasons episode Back to School, released on August 16. She is the second to be a playable female, after the Matilda (third if one counts Jewel from Angry Birds Rio), and the first new playable Birds to be female that wasn't part of the original Flock (the next is Silver)

Appearance
Stella is a pink round bird with three pink plume feathers on top of her head, blue eyes with eyelashes and a short yellow beak. The color of her breast is light pink and has three black feathers at her back.

Personality
Stella is eternally optimistic and bright. And while she may look cute and cuddly, don’t be fooled. Push her too far or mess with her friends and she’ll soon reveal her blazing-hot temper! That’s just how she rolls – sweet on the outside and fierce on the inside.

Angry Birds Seasons
Stella's debut was in the Back to School theme of Angry Birds Seasons. She, was the fourth bird "introduced" in the episode, as all characters were given tutorial levels in this episode, though she was the only actual new character. After this appearance, she becomes a recurring playable character in various levels afterward.

When Stella was released, many players regarded her an extremely useless character due to her bubble powers being unable to cause any significant level of damage. Because of this, Stella had to be used with much planning and strategy, as she was not nearly as versatile as the other birds (such as Bomb or Terence, whose powerful abilities enabled them to demolish structures with ease).

Angry Birds
After Stella's first introduction in Angry Birds Seasons, she was quickly added into the original Angry Birds game in the Birdday Party theme; being introduced in level 19-1. From then on, and throughout the games that followed, she was a playable character.

On her own, Stella will not be able to do much damage. She will only be able to shatter a single glass block, do slight damage to wood, and will merely bounce off stone blocks (making her physically the weakest bird in Red's entire flock). Stella is most useful when she is surrounded by bricks that are not covered, so the best way to take advantage of her ability is to shoot her in between structures, and then release her ability the minute she falls in between the blocks.

Angry Birds Rio
While Stella didn't appear in the Rio chapter of the game, she was prominently featured in the Rio 2 chapter of levels, starting with Rocket Rumble chapter. Stella not only shared the exact same powers as in other games, but she introduces the Toons design of the character in a game.

During boss fights (a feature which had been introduced in Rio, whereas before there were only boss levels), Stella's ability does little to the actual boss. Even if her ability is used and manages to trap the boss in a bubble, it will do absolutely nothing, nor affect the enemy in any way. Instead, she should be used as an extra bird, perhaps to trigger TNT or lift harmful debris if the boss is nearby.

Angry Birds Friends
In Angry Birds Friends, Stella formerly appeared as only a bird that can be chosen as an avatar in the Bird-O-Matic, but Stella later returns playable. She appears playable first in Pink Friday Tournament level 1 on November 22, 2018. She appears in the game again, though infrequently, and can be found in both Facebook and mobile versions.

When her playable version was first introduced, she sported the Toons Design, even in the Facebook version. Her bubbles also had a different design and moved rather than staying still. In the PC version, when looking through the tutorials, there are extra sprites that are not used in-game, such as a more detailed launch sprite.

Gameplay
While there are no changes to Stella's size, ability, and basic principles, her ability is slightly more powerful, destroying other blocks. Using Power-Ups or Special Slingshots will increase her strength and ability.

Angry Birds Fight!
In Angry Birds Fight!, Stella was the last out of six playable characters the player could choose to use. Other than being a playable character, she also appeared as an icon in the matching board. Like all of the other birds in the game, Stella was customizable to the player's preference, and the player would be able to purchase costumes and weapons for Stella with in-game currency. Stella mistakenly used Bubbles' voice instead of her own.

In gameplay, the player could not play directly as Stella; rather, they had to make her attack her enemy by till-matching various small birds. Matching three birds would have popped them out, and matching four or more would activate the specific bird's special ability. If four of Stella's icons were matched, then random panels would be blocked out with wooden boxes on the opponent player's matching board.

Once the round was over, the two battling players began fighting, and the player's success would entirely be based on how many points they were able to gather.

Angry Birds 2
When Angry Birds 2 first launched, it was stated by Rovio that Stella chose to "sit out" of the game, along with Hal and Bubbles. She could be used as a player icon in the tournament in her Stella animation form, but other than that she made no other appearances in the game. She was, however, added in the game on October 17, 2018, and became available to use on October 19 as an Extra Bird in Angry Birds 2; she is usually sleeping but can be woken up to be usable for four hours and occupy an extra eighth spot in Red's flock. Once the four hours are up, Stella goes back to sleep, and the player must wait twelve hours before they can wake her up again. You can also do this with Hal, Bubbles, and Leonard, but you can only use one at a time.

As with older games, Stella once again has the ability to wrap things in bubbles and lift them away. This time around, though, the ability is actually pretty reliable, making her useful even though she's still physically the weakest bird in the flock. When using the ability, Stella encases herself in a bubble; in this state, anything she touches also gets encased in a bubble and is carried off for a short while before the bubbles pop, after which the items inside take heavy damage from falling. Since there's no limit as to how many items can be affected by the ability, Stella is particularly useful for clearing away structures with a lot of materials densely packed together. With this ability, Stella can even be used to one-shot some bosses; if used at the right time, Stella's ability can send a boss pig falling straight into a bottomless pit or floating up and away, killing him instantly (provided there is a bottomless pit in the room or a gap in the ceiling where the boss can float out of).

Angry Birds Ace Fighter
Stella appears in Angry Birds Ace Fighter as a non-playable character. Stella is the bird that showcases various tutorial boxes and mail inbox for the player.

Angry Birds Blast!
Stella appears in Angry Birds Blast! as a non-playable character. Stella only made cameos in places such as the in-game map.

Angry Birds Reloaded
Stella appears as a playable character. She uses her Toons design like everyone else (except for the Mighty Eagle). There are no changes to Stella's size, ability, and basic principles meaning it's the same as in previous games.

Angry Birds Stella
Stella leads her own animation series in Stella Toons, which is based on the Angry Birds Stella game. The story revolves around her and her companions, Poppy, Luca, Willow, Dahlia and their former friend, Gale. (along with the pigs) The series explores her hidden story outside of the regular series and games, and her talents and interests.

Angry Birds on The Run
She and Matilda debut in this series in Season 2 as main characters along with Red, Chuck, and Bomb.

Trivia

 * In the trailer, Stella is shown to use a bubble wand to produce the bubbles, however, this wand is nowhere in the game itself.
 * In the Angry Birds: Hatching a Universe book, it is revealed Stella went through many changes in development, she was once considered having a blue color. She also resembled many anime characters and the Powerpuff Girls, as said in the book.
 * Stella's plush also reveals she once was a much more temperate shade of pink, while currently, she is a light shade of pink.
 * Stella is the first bird to be confirmed female at her release. Although Matilda is female, she was never actually confirmed to be when the game was released.
 * Stella has the most sprite changes/costumes. Her prototype plush shows a rather different sprite (see Stella's gallery). Her sprite in Angry Birds Seasons was different from the prototype. Afterwards, in her release in Angry Birds Classic she had a few minor adjustments. In Angry Birds Rio, her sprite was exclusively changed just for the "Rio 2" segment. In Angry Birds Stella, her sprite was changed to a much more cartoonish look. In Stella Toons her sprite is different from her actual Angry Birds Animation style. Lastly, there are more than 9 different designs for her in the Angry Birds: Hatching a Universe book.
 * Stella is the first Angry Bird to sport an actual eye color other than black (light blue).
 * Stella, along with Matilda, Silver, and Hal, are the only four birds that don't have a Space counterpart.
 * The name "Stella" means "star" in Latin. The "star" translation was also revealed in the Angry Birds Stella Interactive Annual 2015.
 * She is one of the only bird to have a consistent soundtrack. It can be heard though the beginning of the episode The Storm, A Fork In A Friendship and Pop The Top in Angry Birds POP!. Another version of her soundtrack can be heard here.
 * Despite being heavily featured in early advertisements and artwork for the game, Stella-as-Arcee was not actually in the game for a very long time. By the time she was added to the playable roster, the original heavily-Generation-1-Arcee design was changed to be more of a merger of Generation 1 and Prime Arcee, with a motorcycle altmode.
 * Airachnid Bird's Insecticon accessory does not appear to be based on any specific Insecticon, which is actually a real oddity for this game.
 * Arcee Bird's Daniel Accessory is, of course, a reference to Generation 1 Daniel Witwicky, who eventually became Generation 1 Arcee's Headmaster partner
 * In celebration of the launch of the Angry Birds: Transformers game, a costumed actress portrayed Arcee Bird and interacted with fans young and old at New York Comic Con 2014 (despite not being in the game).