Well, to tell you the truth, this game is very fun when you are playing against a human opponent, like a brother or sister. It can get rather boring playing by yourself after a while. And the other thing. This game is terribly hard . Even in the easiest mode, it may take you 3 times to get to Onslaught.
Onslaught is very hard too.
The computer plays very cheap, even in easy mode. But wait, that's not the hardest part. To get the secret characters permenently on your memory card, you have to fight them. To do this you have to do certain things and not loose any of your characters. This is even harder then killing Onslaught.