I suck at asteroids :-P. I managed to get to level 5 but i was out of lives by that point and lost almost as soon as that huge blob exploded to lots of tiny blobs (because i had a stream of bullets towards it so i got a few splits almost immediatelly).
I like the handwriting graphics, though as others mentioned it'd be nice if it had a tiny bit of sound. Also i liked the antialiased lines used for the ship and lives. And, i'm sure it wasn't intentional, but the amber scheme reminded me of my first PC's CRT :-P.
I noticed that there is also mouse input, but i couldn't figure out how to control with the mouse (it seemed to rotate arbitrarily) so i only used the keyboard.