theres seven.
Super Mario Galaxy 2 is only for the Nintendo Wii.
There is only a Super Mario Galaxy, but there wont be a Super Sonic Galaxy.
the only character that you could unlock by playing super Mario galaxy 1 is rosalina because she was only in super Mario galaxy 1 and now 2
As of now, only Super Mario Galaxy. But in 2010 we will get Super Mario Galaxy 2 and New Super Mario Bros. Wii.
No. Super Mario Galaxy 2 is only compatible with the Wii and Wii U.
Yes, it is. Anything Mario related is only created and made by Nintendo.
No, super Mario Galaxy is not on the computer. Super Mario Galaxy is a game that can only be played if you buy or rent the game "DVD" pack from a gaming or video store. IT can only be played on a Wii gaming system.
No, Yoshi's only in super Mario galaxy 2. However, Yoshi is the game icon and a planet.
No, it is only for the Wii.
Yes, You can play as Luigi in Super Mario Galaxy 1 & 2. In Super Mario Galaxy 1, however, you need to really want him. He'll only be playable after collecting 120 stars with Mario (Double what's needed to beat the game).
No, not yet. They say that a demo of it will be released on the Metroid: Other M disk. Yes It is on the virtual console from the wii shop channel.
Quite simply, you can't.But, if you've got Super Mario Galaxy 2, you can unlock him after you complete Yoshi Star Galaxy.In short: You can only play with him in Super Mario Galaxy's sequel.Hope that helped.