Super Mario Galaxy is...not that great. I hate to say it, but it's true. It's almost boring, mostly due to the total absence of anything resembling challenge. The unimaginative level goals don't help. There is one stage that is basically a floating loop made of water. For the first star, you follow a shark and swim through 8 rings he creates. I don't even think there is a time limit here, and I didn't see any enemies trying to impede my progress. For the next star, you race penguins around the exact same loop, but this time you don't even have to aim for rings or anything. The second star is less involved and even less interesting. Then there is a star in which you race a 'Cosmic Mario' around about 1/3 of the same damn track. Seriously. There are these comets that move around at random, and if you enter a galaxy when one is in orbit, you get a special comet mission like the aforementioned Cosmic Mario races. Or, you'll have a timer challenge, where you need to complete one of the regular level goals under a certain time limit. So, you get to do the same exact thing again for another star. People complained about Super Mario Sunshine's blue coins, but I haven't seen anyone complaining about this yet. They just slap a timer on a previous goal and expect you to accept it as additional content. Sad. And it looks like about half of the stars are gained from these comets. It's an alright game, but it's not the miracle people are making it out to be.