Audio problem: The various versions of the Scrake, including the Halloween and Circus Scrakes have chainsaws on their right arms. However, the Christmas Scrake has just a giant ice knife for a right arm. Yet you can still hear the sounds of a chainsaw when he is near despite not having one.
Bug: Suburbia: In the last wave, the Patriach will often get stuck against cars and just jump in place, unable to move.