Not The Worst Asteroids Clone
Asteroids was a great game and a clone with a nice design isn't really a bad thing. Maybe it's not something we really need... But it's great for cutting your teeth.
A couple of suggestions, to take with a grain of salt:
*Fix the "Puase" typo. It should be "Pause"
*Add a death animation. Aside from seeing your lives drop down by one and seeing a box explode, there's no indictation your ship has in fact died.
*Change the style of the "boxes." They don't really match the theme very well. You have a pretty cool modern abstract style going, which works, but the boxes are a boring contrast.
Keep up the good work!