not bad
The game was fun, but could have been better. I have a few ideas that may be of help to you. The first is to change either the color of the background or of the flying monsters. They blend in too well and it just gets aggrivating when you can hardly see your enemy. Another problem with sight has to do with the golem creature the hits the user with the rock spikes, if you can make it to where the user can see the enemy before it can attack the user. You can keep difficulty up without cheap 8-bit tactics (if that is what you were going for). If you don't take care of these or if you plan to make the game longer, I recomend adding health packets of somekind. Be it fruit, first aid kit, or just balls of light, health is always appreciated. My final thought is to add some more powers, maybe have the user collect them directly, or purchase them in-game through the collection of something else. Hope to see the full game get some of these treatments.