So I went on Gamestop.com to look for a new Wii Guitar that is compatible with my Guitar Hero 3 and other Guitar Heros that will soon come out. My old Wii Guitar that I bought long ago included the guitar and Guitar Hero 3. So I want to save money. I saw on Gamestop.com a Wii guitar that is $24.99. I looked at the details and I saw "Compatible with Guitar Hero III". Basically, my question is, is that Wii Guitar compatible with let's say Guitar Hero: Metallica???