Great first game - the graphics look smart, and the menu's a pretty cool addition too.
However, I found it was very each to completely lose the sun (maybe include it's direction on the map), and my laser did not appear to do anything... to anything! From a balancing point of view I found the ship quite hard to control, and I quickly got swamped by enemies that shunted me all over the place!
Minor gripe on the instructions; could be moved to the menu screen since I was still reading what to do when the first enemy bashed me across the screen! Also I had to work out that I could shoot myself, could't see any reference to that anywhere.
In any case, the fact that you got a complete playable game out there is an impressive achievement that you should be proud of - nice work!