Fun Multiplayer / Party console games?

Whenever my friend had a party or whatever, we always used to play this one Xbox game called Hunter: The Reckoning. It wasn't the best game ever or anything, but it was a lot of fun, especially if you could get all four people playing in co-op.

I'll go ahead and say the obvious Halo/Halo 2. It was great being able to hook up to Xboxes and play 2 on 2 using two different televisions to do so, but even regular splitscreen is fun as well.

Another one that me and my friends play is NHL Hitz. I'm not even really a hockey fan, but this game is still great regardless. It's fun playing against each other or just playing together on the same team against the CPU.

Finally, I'll say the Hot Shots Golf games. These are the games that turned me on to golf in the first place, since they make it so fun and easy. They're great too since up to four people can play using only one controller. Trust me, multiplayer golf might not sound too fun, but play one of these games and it will change your mind.

Jam it back in, in the dark.