This guitar can be used for eith rock band or guitar hero for PS3, they also make models for the WII and Xbox 360 but i am not a big fan of these for a couple of reason, The main reason is because of the neck of the guitar if you look at the last picture i put up for this you will see that the width of the neck is WIDER than my thumb and that is a problem mainly because after a little while of using it especially on expert playing the width really hurts your thumb and palm.
There isn't really a choice when it comes to colors of the guitars each system i believe has one color of the guard in from as in PS3's is black i believe the WII's is pink and i am not sure about xbox 360's but the guard does come off if you so choose.
One good thing is that the button are big but that is also a bad thing because they are spaced out kinda far so when your hitting a double note that is green and orange be prepared to feel a little pain reaching all the way across
Update On Dec 09, 2008: i added a video of my self playing rock band. The track is wanted dead or alive by bon jovi and it's on expert hence why my fingers are moving so fast