Although I can understand why you went with the "spacey" soundtrack, it gets incredibly repetitive and distracts from the game with its grating loops. The gameplay itself could be greatly improved; enemy hitboxes are off. The controls are un-intuitive and clunky. And the premise of the game is very bland. There is no motivation other than to get the medals, which is very bad when it comes to making games.
If you want to make a good game, play test it to make sure it works how it's supposed to.
I do, however, commend you for keeping it just above 1mb. I saw an animation, a sprite one at that, that used up 25mb.
Needs a lot of improvement.