Angry Birds Yahoo!

It is like Google Chrome version but better. It has power-ups! The Mighty Eagle still appears but there is a option to use Mighty Dragon too. The game was released on December 1, 2011. The game was announced on November 6, 2011.

Birds

 * Red - Screams
 * Jim Jake & Jay - Splits into three
 * Chuck - Speeds up
 * Bomb - Explodes
 * Matilda - Drops an egg bomb
 * Hal - Acts as a boomerang
 * Terence - Screams
 * Bubbles - InflatesPower-ups.png
 * Mighty (episodes only) - Defeat all pigs in a level
 * Mighty Dragon (episodes only) - Loops and defeat all pigs
 * Mighty Orange Bird-Smash all Pigs in a level
 * Blu - Pushing and rocking nearby blocks
 * Jewel - Flies straight forward
 * Super Red Bird - If screams by a pig, the pig will become scared. He, the Space Birds and Star Wars birds have Sling Scope.
 * Lightining Birds - Splits into three
 * Powerbomb Bird - Explodes, but in a larger radius
 * Monster Bird/Incredible Terence - Like Super Red Bird, but moans loudly and is strong like his original counterpart.
 * Lazer Bird - Accelerates straight to where you click, and he accelerates faster than his original countepart.
 * Icelce - Freezes any nearby material
 * TNT Bird - Explodes
 * Tyler - Changes direction when clicked
 * Chet-Bounces into a direction
 * Tony
 * Stella - Speeds up like Chuck
 * Poppy - Drills into a tornado
 * Luca - Screams like Terence and Red But Powerful
 * Skunky -Sprays
 * Wingman - Nothing
 * Chickenwing - Sprays
 * Willow - Spins
 * Dahila - Teleports
 * Silver - Loops anticlockwise once and slams onto towers

Pigs

 * Small Pig
 * Medium Pig
 * Large Pig
 * Helmet Pig
 * Moustache Pig
 * King Pig
 * Springy Pig
 * El Porkador (only in events)
 * Machine Boy (only in events)
 * Bird Pig
 * Mexican Pig (only in events)
 * Stick Pig
 * Matey
 * Pirate Vertain
 * Brute
 * Cactus Knight
 * Tornado Pig
 * Red Pig
 * Boom Pig (goes “boom” when popped)
 * Queen Gale/Utimate Gale (only in events)

Episodes

 * 1) Poached Eggs
 * 2) Mighty Hoax
 * 3) Danger Above
 * 4) The Big Setup
 * 5) Ham Em' High
 * 6) Mine and Dine
 * 7) Birdday Party (95 Levels)
 * 8) Boomerang_and_white_bird.png and Hal's assets from Angry Birds Yahoo!]]
 * 9) Yahoo! Dimension
 * 10) Wreck The Halls
 * 11) Cherry Blossom
 * 12) Pig Bang
 * 13) Cold Cuts
 * 14) Fry Me To The Moon
 * 15) Summer Pignic
 * 16) Easter Eggs (18 Levels & New 15 Levels)
 * 17) Moon Festival
 * 18) Ham O Ween
 * 19) 4 Angry Birds Rio Episodes
 * 20) Teamwork (from Angry Birds Google+)
 * 21) Green Day
 * 22) Surf and Turf
 * 23) Pigini Beach
 * 24) Bad Piggies
 * 25) Red's Migthy Feathers
 * 26) Short Fuse
 * 27) Tatooin Death Star Hoth & Cloud City
 * 28) Utopia
 * 29) Moon Of Endor & Death Star 2
 * 30) Red Planet & Pig Dipper
 * 31) Naboo Invansion & Escape to Tatooine
 * 32) Trick or Treat
 * 33) Trick or Treat II
 * 34) Cosmic Crystals
 * 35) Battle of Naboo & Rise of the Clones
 * 36) Winter Wonderham
 * 37) On Finn Ice
 * 38) The Blues' Beach Bash
 * 39) Flock Favorites
 * 40) Hockey Peck
 * 41) Seeking Slides
 * 42) Feathery Hills
 * 43) Tropigal Paradise
 * 44) New Pork City
 * 45) Magic Pigs
 * 46) Marie Hamtoinette
 * 47) The Big Setup 2
 * 48) Escape From Angry Birds Camp Lakebottom
 * 49) Summer Camp
 * 50) Rise of the Bottom Dwellers
 * 51) Mindsuckers From the Depths
 * 52) Bird Island
 * 53) PiggyWood Studios
 * 54) A Noob Hope Birds
 * 55) Hammier Things
 * 56) The Birds Noobs Strike Back
 * 57) Ragnahog
 * 58) Angry Birds Super Noob Suits
 * 59) Piggy Farm

Power-ups

 * Sling king (Upgrades wood slingshot to metal slingshot)
 * Super seeds (Upgrades bird to bigger size and more strength)
 * Add-it-up (Adds another bird)
 * Sling-scope (Shows where your bird will go)
 * Birdquake (Shakes ground)
 * Homing Bird (Shoots Missles)
 * Alaka Bam (Blows up)
 * Tnt Drop (Blows up like alaka bam)
 * Samba Burst( Shake Ground)
 * Wingman (Defeats all pigs)
 * Shockwave(Defeats all pigs)
 * Call in the Flock(Defeats All Monkeys)
 * New! Power Potion (Supersize your bird to a Popping Pig Giant!)
 * New! Chili Pepper (Use it To Any Bird)

Yahoo! dimension level locations

 * 1) 1 - 10: Far right
 * 2) 2 - 19: Up-right corner
 * 3) 3 - 1: Next to helmet pig
 * 4) 4 - 4: Under bridge
 * 5) 8 - 15: Behind wood squares under slingshot
 * 6) 9 - 7: Under slingshot
 * 7) (Golden Yahoo!) 13 - 12: Bump behind slingshot
 * 8) 17 - 15: Treasure chest
 * 9) 18 - 1: Behind pink birthday cake
 * 10) Episode select: Sun
 * 11) Credits: Bottom
 * 12) Shaman Castle For Angry birds epic
 * 13) On Finn Ice Level 2: Christmas
 * 14) 32 - 15: so zoom out then look
 * 15) 20 - 11: Behind pink birthday cake
 * 16) Trick or Treat Theme 4 - 5

1st Version Update
On January 23, 2012, The Yahoo! website showed a Chinese New Year sneak peek to a new version. It introduced the Mighty Dragon.

2nd Version Update
The Yahoo! website showed a sneak peek to a new version. It includes Cherry Blossom, Pig Bang, Cold Cuts, Angry Birds Volcano, Angry Birds Wonderful Pistachios, and Angry Birds Vuela Tazos. The update was availible on April 7, 2012.

3rd Version Update
On June 20, 2012, there will be a new version. It includes Angry Birds Fuji TV, Fry Me To The Moon, Easter Eggs, and Summer Pignic.

4th Version Update
On July 1, 2012, this game had a New Version. It includes Piglantis and Angry Birds Heikki.

5th Version Update
6th Version Update

all new Power Ups like Power Potion

On November 21, 2012, the game released a new version. It includes Tatooine and Death Star.