Rockband Accesories.

My cousin wants to get her son Rockband, but she wants to know if she can buy the game and just the drums, or if she HAS to get the guitar with it, or the HAS to get the whole set.

He just likes playign the drums and she says she doesn't want to get the guitar if she doesn't have to.

PLayStation 2, btw.

Nope, just as long as there's at least one instrument, you're good to go. Although it is more fun to have a full band.