My first hands-on impressions of the new Nintendo GameCube title Mario Superstar Baseball have been posted over at AMN.  The full review will be up later this week, but for now you can get a taste of the Challenge Mode and some of the little details found during a game of Mushroom Kingdom baseball.

I've also explored the Exhibition Mode, Toy Field, and Mini Game Mode and from the looks of things this will be another must-own title for Mario's sports fans.  It's very addictive and would be even more enjoyable with additional players.  Playing against the CPU just is not the same.