I liked it!
Ha, I always love reading your "Author Comments", they are excellent.
The game itself is also very good. I don't know what the guy below me is on about, the shark "panching" syncs pretty much perfectly with the beat for me. Maybe he lacks something called rhythm, (or brains) and doesn't understand that you punch the sharks in time with the beat, thus the synchronization is up to you, as the player.
I do however agree with him on that the game would be enhanced by adding sounds for hitting and missing, seeing how there can be a fair bit of confusion during the fast, shredding bits of the songs. Or as you so nicely put it, the "Fucking Rocking HARD, FAST, and KICKING ASS" bits.
Good work with his game, I very much enjoyed it.