The GC version of the RPG Mario series that got even better than it already were!
If you enjoy Mario series, or RPG games this is the best game in the field.
Besides your main objective, you have plenty of side quests that are really fun and that help you improving in the game (getting more experience, money, etc.).
It is a very long game that never gets repetitive as each time you learn more moves and control more characters.
Actually this is a game that everybody should at least try out and play. I'm not usually into RPG games but this one I really loved! And it is doubtlessly the best paper Mario so far...