Summary: This game has said to have been better than the first, well that's not true. The levels are so much easier than the first and it feels like just about every level is very similar to a level in the first. But there are two elements I like from this: Yoshi and the Green star challenges. My final thoughts are it's an OK game, but not nearly as good as the first.
Summary: This doesn't necessarily trump Galaxy 1 but in some ways, it does. I like the music much more than on galaxy 1 and I think the levels themselves have improved too. I think, though that galaxy 1 has better cutscenes, bowser battles, and I prefer Rosalina's "Dome Observatory" over my "Faceship". That's also true with the world map vs. my preference, the map from galaxy 1.
Summary: Personally, I don't know a whole lot about video games, but my son wanted this game for Christmas last year 2010 (he was 9 years old at the time), he just loved it. He and his friends played it for hours on end. I guess if you're into video games and the whole Mario series, this game is great!
Summary: It is a great game. Very interactive. Playing this game will lead hours of fun. Not a great game for multi player since it allows only 2 simultaneous players at a time. Also, it allows only 3 distinct users to play in the same console.
Summary: Ok, actually I have never been fan of Mario Galaxy. For me, the gameplay is very bad and its not a big deal. However, this 2ND game looks cooler because of Yoshi and new power ups, or whatever. However, on the first one, a player two could join, the trouble was that while P1 controlled Mario, the P2 only could point to the screen and grab items, etc...
Summary: I bought this game for my son of 9 years old and he love it I think $50 dlls is expensive price for a video game, but I bought this online for $40 dlls. I think is a good deal for very good game.