
Overhyped - the first Assassin's Creed game. It was beautiful, and had so much potential and was such a letdown. Missions were repetitive and became more chore than fun. They fixed a lot in the second one, but I really liked the setting in the first one.
Underhyped - Beyond Good and Evil when it first came out, Lost Odyssey, Psychnauts, and probably several more I can't think of at the moment.
Congrats on your Packers beating my Patriots. That was a well-deserved win on their part.