Okay, i like the concepst and the gameplay ain't bad, but there are some minor details about it
i like the idea of a just ahving a wide place to roam and all that jazz, but sometimes it can be tricky to know where the enemies are, and i you only need one more to finish then its a little frustating.
maybe having an arrow or some sort of indicator of the general area where the enemy might be could help.
having on the top of the screen how many enemies are left is definetly a great detail, maybe changing the color depending on how many are left could help, but thats just me nitpicking
the girl design is cool, i dont have problems with sexy characters at all and her having floaty physics makes snece since she is flying, of course is gonna continue her momentum once the direction key is no longer pressed.
Finally the aiming system is..... lacking, it would be more intuitive to be able to shoot in all directions instead of just whee you are looking,oterwise you are risking recieving damage that you shouldn't recieve