Score Hero is one I haven't gotten yet. I haven't really tried though. I'm at 730pts and the big ones left to get are Score Hero, finish Expert, buy guitars and play co-op lead & bass.
I really like the game. I love the song selection and am glad they left off the sappy shit from the 90s (Angel, Amazing, Crazy, Cryin). People playing online are bitches though only playing for achievements instead of playing the way the game was intended. Online achievements blow... across the board.