I'm having a lot of fun with Mario Party 8 for the Wii. There's a metric buttload of mini-games, the majority of which are very clever and a lot of fun to play. The boards are well-designed, with quite a lot of strategery involved and plenty of room for back-stabbing opponents. There are a lot of cool tradeable extras involved too, although the extra mini-games like bowling and moped racing have been a bit of snore so far.

It's best with human players, but I find the game plays surprisingly well in single-player, with the A.I. doing fairly well for itself.

A great addition to the Wii library!