Well, i guess it was ok...
It was alright, but there wasnt any sound effects, and you didnt really know whether you had hit it or not. You should have it so that it goes up in flames or something, or atleast does something but moves like 1px up.
Also, its really hard to play on a laptop because you have to change the way around that you are pressing them, which is really hard.
Also the graphics didnt really match the game. All the graphics were in bubble gum, kinda writing, and didnt really fit in with the game, and music style. Neither did the beggining music or pretty much any o the graphics.
Well, nice try, but look at the real game, and look at what they are doing right with the easy to tell whether you hit the note, or not, and the graphics that fit in with the songs and stuff. The squigely lines makes me doubt that you coded the game, or atleast used a tutorial, as usually if you can code something like that you should be good enough to actually put good graphics onto it.
Also you should have a laptop, or unapropriate keyboard option, that lets you switch it around, so that the notes are coming the way that you are facing, so you dont have to play the game upside down or whatever.
Basically create better graphics that wont make your game look n00by, and remember that you have a heavy metal song playing, and it isnt going to fit in with bubble writing and squiggily shape tweens
Better luck next time.