A lot of button-mashing
The whole story mode is kind of mindless button-mashing, and is therefore very easy to beat. The only other problem I have with this game is that Convict should not be a character to unlock; he's not really as good as he seems. The only time he's worth it is when he turns into piconjo, or he gets the power up when he gets two of him. Overall, it's a good game, but when you get down to the nitty-gritty...it loses its flair.