Bubbles/Angryverse/Classic

Bubbles is a supporting character within the Angry Birds games.

Appearance
Bubbles' prototype design had him colored in a darker orange with green spots. The spot on his bottom was light yellow rather than black. It's also noticeable that he has less childish expressions, which is what leads to speculate that he was intended to be older than his final version.

His final design features Bubbles as a small round spot-breasted oriole with a large yellow beak. His black feathers on top of his head have different sizes. The first feather is short while the other is large and his stomach is black. He also has two large, maroon eyebrows that are comparable to those of Bomb and Chuck. However, in Angry Birds Toons, he looks mostly the same but with white eye pupils on his eyes.

Personality
Though he looks cute and harmless, Bubbles can become lethal in seconds. He has the unique ability to expand to triple his size when angered. This comes in handy when knocking piggy structures to the ground.

Angry Birds Seasons
Bubbles makes his introduction to the Angry Birds series in Angry Birds Seasons, in the Ham'o'ween theme, the second Halloween based episode of the game. His first level is Ham'o'ween 1-4. where again, he shares the level with another bird in an introduction level, which never happened up until that point. (2 Reds appear with him) Bubbles got his own character animation to celebrate the introduction of his character, which had never happened before to any of the flock members. (Hal received his own animation for Summer Pignic, but that happened a while after he was introduced) After his introduction level, Bubbles appears often throughout the following episodes as a playable character. However, he was a very prominent character in Ham Dunk, appearing as the main in the episode banner. The episode was also advertised with Bubbles, likely for his resemblance to a typical basketball. Bubbles' ability is to inflate to a large size, and then to deflate like a balloon, flying about until he disintegrates. The actual inflating ability is very strong and can be extremely destructive. Bubbles will not destroy the blocks around him by inflating, but more so will push them away, causing them to fly around and crash into other structures, destroying the blocks and structures effectively.

Angry Birds Classic
Bubbles, unlike most of the flock's birds, did not make his debut in the original Angry Birds game. Instead, he first appeared in Angry Birds Seasons, and then appeared in the original game in the Birdday Party theme. After playing his introduction level, Birdday Party 18-1, he will appear often as a playable character. Bubbles is an extremely unique character in multiple ways. For one, he is the only character in the flock who has another bird in his introduction level. (Chuck was also in the level) He is also the largest character in the flock when inflated. He is also the first character of Red's flock to be introduced outside of the original game, and have his own introduction video. (Stella was the second of both of these things) Bubbles’ ability is the same as it is in Angry Birds Seasons. Bubbles inflates like a balloon, which would originally cause an extreme amount of damage; however, the code in Angry Birds was retooled in 2015, in version 5.1.0; in this update, Bubbles was weakened greatly, as he would usually fly out of the structure or clip through the floor

Angry Birds Rio
At an indeterminate time, the Flock was captured as rare birds and taken to Rio de Janeiro, Brazil where they fought with Blu, Jewel, and their friends against Nigel the cockatoo, Mauro, and his marmosets. Bubbles did not appear originally in Angry Birds Rio, but arrived much later after the others, so it is possible he was not kidnapped originally and made his way to Rio to help rescue The Flock.

In gameplay, Bubbles retains his ability to inflate into a giant size. This comes in handy when knocking piggy structures to the ground. Bubbles is still strong and still breaks everything pretty well.

Angry Birds Trilogy
In Angry Birds Trilogy, Bubbles appears as a playable character in Smugglers' Plane in the Angry Birds Rio portion with the Anger Management Pack unlocking him for use in both the Angry Birds Classic and Angry Birds Seasons portion in Birdday Party in the former and from Ham'o'ween to Piglantis in the latter.

In gameplay, Bubbles retains his ability to inflate into a giant size. This comes in handy when knocking piggy structures to the ground. Bubbles is still strong and still breaks everything pretty well.

Angry Birds Go!
Bubbles is featured as a playable character, and as it is a 3D game, he and all the other characters were given 3D character models. He didn't face much change in terms of appearance or voice audio. He is the first character to be introduced in the Air theme.

He is the only character with 2 different 3D models, one where he is inflated and one where he isn't.

Like all the other characters, Bubbles has his own kart, the Rapid Rider. (costing 1,500 gems)

Gameplay
Bubbles has one of the most powerful abilities in the game, and his ability is adapted from the other games he's appeared in. When his ability is activated, his kart disappears and he inflates, rolling down the track. His speed and size increase greatly.

His ability is very versatile. Players can use it to knock into opponents, forcing them out of the way. (and at times tossing them into the air) For players attempting to collect coins, Bubbles can collect entire groups of coins when inflated. This is also very useful when collecting fruit or ice cream.

Bubbles is also not as light when inflated as he is in other games; in fact, being extremely heavy. Thus, the player will not have to worry about him floating off the ground, or losing control of him. He also expands much larger than he does in the previous Angry Birds games.

He used to be unlockable through Boss Battles, and the player would have to beat him 3 times in the "Balloon Frenzy" track. In these battles, he would try to divert the player by sending boxes of TNT, coins, or boosts tied to balloons.

As of v2.0, Boss Battles were removed and replaced with the Campaign Map. Once you get a star in the campaign level 3, race 5, you will unlock Bubbles and will be able to play as him.

Angry Birds 2
When Angry Birds 2 first launched, it was stated by Rovio that Bubbles chose to "sit out" of the game, along with Hal and Stella. However, the orange bird was added to the game on March 26, 2019, as an extra bird. His powers are the same as in most Angry Birds games (inflating), but he does not do his damaging deflation ability. Instead, he pops dealing almost no damage (ignites any TNT near his small blast radius), unless there are some blocks on top of him while he is inflated. In this case, he is a more overpowered Red and weaker version of Bomb, but will activate his power in 2 seconds if he gets hit by any screwdrivers Construction Pigs throw at him, any snowballs shot by Snow Pig, or hits normal surfaces.

Angry Birds Reloaded
Bubbles is featured as a playable character in Angry Birds Reloaded. Unlike most of the bird characters, he uses his Toons design rather than his Friends design. Bubbles has the same exact ability as he does in the previous slingshot games he appears in. He does not face much change in this game. There are no changes to his actual ability, and the same logic applies.

Angry Birds Toons
Bubbles was a guest character in Angry Birds Toons that solely appears in the Halloween-based episodes, which happen once every season.

Trivia

 * Bubbles and Hal are the only birds to first appear kidnapped by the pigs.
 * Along with Stella, Bubbles is one of the only two birds that were first introduced into the Flock during an Angry Birds Seasons episode.
 * Bubbles' sprite sheets, in some games, are separate from the other birds' sprites, which are all contained on one page.
 * Bubbles, Silver, and Hal are the only three birds that do not have a Star Wars counterpart.
 * Angry Birds Friends used to state Bubbles as "Orange". This has since been fixed in updates.
 * Bubbles' favorite holiday is Halloween, which we can see in most media like games (such as Seasons and Blast) and in the cartoon Angry Birds Toons.
 * If Bubbles is inflated, he is the largest bird in the flock, not counting the Mighty Eagle. He is even larger than Terence.
 * Bubbles' ability is similar to a male Frigatebird inflating his red gular bag.
 * Bubbles and Silver have spoofed the British prince and princess 2018 marriage in an Angry Birds Blast offer image.
 * In Angry Birds 2, it is possible for Bubbles to "deflate" in a way. This can happen if he is inflated, and goes through a portal in any Bamboo forest level. In this state, he does not make any sound upon vanishing.
 * Also in Angry Birds 2, if he is inflated, his physics will go from rigid-body to soft-body. This is because Unity (the engine that the game uses) supports soft-body physics in addition to rigid-body physics (and Box2D can only handle rigid-body physics).
 * The beta version of Bubbles uses Hal's sound effects.