Angry Birds 2/Hats

The Hats are optional cosmetics in Angry Birds 2 that give an additional multiplier to the player's main birds. Said hats are divided in different sets, and can be purchased with Black Pearls. Collecting all the hats from the same set will upgrade the slingshot's appearance and rank, and will give the player more Bird Power (+1 to every bird in the flock). The Hat Shop also has a Black Pearl treasure chest, which can be opened every twenty four hours.