OH, and in regards to your mention of Mario Galaxy in your original post, I wouldn't even bother with the first one. Especially seeing as it's still going for like $30. Just skip right to 2. I mean it's not like there's any kind of story that you need to be caught up with..
Don't get me wrong, it is an OK game. But that right there is the problem. Just "ok" for a Mario game just doesn't cut it, and is quite dissapointing. Maybe it's just me, but I found the environments pretty bland for the most part and the lack of larger galaxies was dissapointing, the powerups kinda lame, the main "hub" pretty cumbersome and boring, and the game in general too easy for the most part.
Now Galaxy 2 on the other hand, improves on most all of the weaknesses with the first. Sweeter powerups, more vast and inspired galaxies, quicker and more fluid map system instead of the hub, more challenging, and the awesomeness of Yoshi.
