Great!
Well, it's a pity to see that this game has been rated >4, when it clearly shows a large a mount creativity and innovation. I had a great deal of fun with it, and I'm still playing level 5 ATM.
Levels 3, 4, and 5 were great, and I haven't seen concepts like them in the other Rock Out games so far. I especially like level 4. It's great that you incorporated so many unique ideas in one flash game!
For you reviewers out there, understand that you aren't rating this game on how difficult it is. I certainly don't see difficulty along with "Graphics, Style, Sound etc". You could probably lower such category as style, or interactivity, but rating low/zero on evidently above average/included material doesn't make much sense.
That aside, thanks again for a fun and entertaining game.