Nice game
pretty decent space shooter game, I like how the asteroids break up and can still cause you damage adding a fun little challenge. One problem though, I can tell you intended to have a backround other than the blank white one I see, but I can also guess/assume you are relying on autobackground rather than making a background layer. This an easy mistake to make, and fairly common in beginning game design, but autobackround feature will not work with all browsers, to be honest though in this game it doesn't really affect the gameplay at all, but there are white words or something that I seem to be able to half see when they are over an object, but I can't tell what they say. I've seen games that are unplayable due to this, but with this game, it's more of an aesthetic thing I guess other than that, nice work.