Angry Birds Seasons: Trick or Treat is a 2010 Halloween-themed version of the game Angry Birds Seasons. The goal is the same as in all other versions of the game. The player fights to get the birds' eggs back but in a Halloween style. The game has forty-five levels. It was originally going to be called Ham'o'ween, a name which was later used for a game released in the 2011 season.