It's a good start. I personally think you need to refine the controls though. I hope this makes sense, but rather than North/South, East/West why not forward/backwards, turn right/turn left (e.g. standard for most games). That way you can go in circles around your enemies without having to constantly cycle between the four keys.

Good start. This COULD be a fun game.map, spawn of other ship and more maps need improvement but i could see potential. i hope al least.

If this game has anywhere more to go than the start area, and one portal-connected area, I didn’t find it. I don’t mind practice work, or other languages, but some guidance would be nice. I’m gonna assume I dominated this because I can’t find anymore enemies to destroy.

As a test, this game was quite good- the animation was professional-grade, and all the physics worked.
HOWEVER.
This game was submitted to the flash portal, and should therefore be judged as a full game, rather than a test.
As a full game, I hate to say, but it did not do very well at all. The gameplay was tough as the playing field did not encompass the entire screen. Also, when the character dies, so many enemies spawn that my computer froze.
There is no load screen or soundtrack, and the entire game is in Chinese. I was unable to get past the second stage because the gameplay was so crude and laggy.

Again, I understand that this was a test. Good job, you made a very good test.
As a full game, this is not very good at all.

Coming along. I could buy upgrades more than once after I had one, so that needs to be fixed, and attack appears to be offset from cursor somewhat, but it's coming along!