Eehhhh
Not great, notes were way off beat. I got rock master on every song, but I didn't unlock the last one. Also, the whole PARAGON9x name didn't show up for me on the song list. I picked it, got a ROCKMASTER, and nothing didn't unlock the last one.
The beats were either very random, or very off beat, which made the game extremely harder than it should've been. Idea's been done. Nothing new.