You can get guitar hero to work... but I don't know what anime hero is nor do I know if it'll work. try it out yourself! Or go to the official pcsx2 forum and ask them there! they're much more informative!
By the way has anyone played guitar hero on pcsx2 with a guitar?
And guitar hero works a friend of mine has it and i tried it works in normal speed in rev 985 with that new speed hack but i don't know if the guitar works