Nintendo needs to go back to the mini-DVD, cause now that they have all the space of a regular sized DVD they are adding way too much stuff. I will never be able to finish this game and therefore never have a reason to take it out of my Wii and no reason to purchase any game after this one comes out. This game has so many modes, characters, stages, challenges, configurations, customizations, secrets, trophies, weapons, features and updates that I fear the effect this game will have on the rest of the market, especially in Japan.
I think the only thing this game is missing is a custom soundtrack option, but I'm sure that was planned for a future update too.