Invasion of the Egg Snatchers is the twenty-second episode in Angry Birds Seasons. It was added in October 2015 and is the fourth Halloween-themed episode in the game. It is composed on thir... Read allInvasion of the Egg Snatchers is the twenty-second episode in Angry Birds Seasons. It was added in October 2015 and is the fourth Halloween-themed episode in the game. It is composed on thirty levels and three Bonus Levels.Invasion of the Egg Snatchers is the twenty-second episode in Angry Birds Seasons. It was added in October 2015 and is the fourth Halloween-themed episode in the game. It is composed on thirty levels and three Bonus Levels.