, the second installment in the iconic Rovio franchise, was originally released on October 21, 2010, as a Halloween-themed spin-off titled Angry Birds Halloween . Following its initial success, it was rebranded as "Seasons" in December 2010 with the addition of a Christmas episode. Core Features and Gameplay Mechanics
: Unlike the original, Seasons introduced specific environmental mechanics such as water buoyancy in "Piglantis," magic portals in "Abra-Ca-Bacon," and ghost blocks in "Haunted Hogs" that birds phase through. angry-birds-seasons-game-link
: Special one-off levels added periodically to celebrate minor global events and anniversaries. Availability and Status , the second installment in the iconic Rovio
A 2015 update added "Birdwear," allowing players to unlock and equip costumes through three-day quests. : Special one-off levels added periodically to celebrate
: This title was the debut for fan-favorite birds Bubbles (the Orange Bird) and Stella (the Pink Bird). It also introduced Tony , a Finnish cousin of Terence.