Alien invaders video game?

I'm trying to remember the name of a video game. It came out awhile ago for ps2 and xbox i think. in the game your an alien and you've come to take over/destroy earth. I remember you have to attack cows and in one of the levels you go to the carnival. Your the alien through all of it and i think you have a small space ship at the beggining of the game. also i think there was something to do with a doughnut shop