Rayman

Rayman is a character from the eponymous Rayman franchise. He appears as a limited time extra bird in Angry Birds 2 from September 1st to September 26th as commemoration for Rayman's anniversary

Appearance
Rayman utilizes his design from Rayman Legends. He has no limbs (no neck, no arms, no legs), has a sock-shaped head with peach-colored skin, dirty blonde hair which can transform into a helicopter when he glides, two eyes chained together akin to Sonic, a purple shirt with a white O on it, a red hood with strings that match with his shirt, white gloved hands with four fingers on each hand, and yellow sneakers.

Origins
Much like Globox, it is unknown how he got to Piggy Island or why he's teaming up with the birds despite defeating various bird-esque enemies in Rayman Origins and Legends

Personality
Rayman is a cheerful character who has a good sense of humor, although he is a tad bit childish (akin to the Blues or Silver,)

Friends: the Angry Birds, Globox, the Teensies, Barbara, Betilla and the Bodacious Nymphs, Ly the Fairy, the Bubble Dreamer, Uglette, and Globox's kids

Enemies: The Bad Piggies, Mr. Dark, Razorbeard, Andre, the Magician, and the Dark Teensies

Ability
Rayman's main ability is akin to Anakin Episode I from Angry Birds Star Wars 2. but instead of a podracer, he uses his fist as a rocket. Tapping anywhere on the screen causes him to zoom to that location, and on impact, his fist would create a minor explosion, destroying glass, wood, and critically damaging stone. After the explosion, his secondary ability is akin to C3PO from both Angry Birds Star Wars and its sequel. After the explosion, Rayman's body parts will scatter, each of them doing various amounts of damage. His head does the most damage, being able to destroy wood and glass, his torso does moderate damage and can only destroy glass and critically damage wood, and his hands and feet can only destroy glass, and nothing else.

Strengths and Weaknesses
Strengths: His fist rocket ability not only destroys glass and wood, but also critically damage stone! His explosion can also pop nearby pigs, Although his secondary ability is unorthodox is heavily reliant on luck, his head can destroy glass and wood, and his torso can shred through glass fairly easily

Weaknesses: His explosion is fairly weak, since it can't destroy blocks, only pigs. Also, as stated on his strengths section, his secondary ability is unpredictable and all of his body parts will scatter everywhere, and most of his body parts excluding Rayman's noggin are laughably weak.

Unlock Method
If one wants to unlock Rayman as an extra bird, there are a multitude of options. You can either collect the Extra Bird key from level 67, collect 15,000 Purple Feathers (which reference Rayman's iconic purple shirt), or wait six days. Once September 26th rolls around, all the feathers collected for Rayman transform into 57% red feathers and 43% feathers. Rayman will then disappear, never to be seen again.

Associated Event
Rayman, much like the other extra birds, has his own event. This event is called Rayman's Renegade Ruckus. It has 7 levels that take place in Bamboo Forest, prizes, and the only birds granted are Rayman's. The music playing is Rayman's theme from Rayman Arena.

Trivia

 * Rayman's launch sound effect is his "Yahoo!" sound from Rayman Legends.
 * Unlike the other birds when one picks their card, Rayman doesn't show an agitated expression, but rather a determined stance, and will wink every 10 seconds.
 * When Rayman's card is picked, purple plum juice splatters around Rayman. This is alluding to the plum items from Rayman 1