I played the game and it's very fun, I like the cute artstyle and retro-like music. The gameplay is basic, but made well. I noticed, that there're are some white lines, which you can see in the backgrounds, I guess textures are not perfectly lined up. Also, shooting sounds get a bit annoying, because it's a lot of high-pitched pew-pew. Maybe, you should make a pair of new samples to avoid noticable repetition and lower the volume of shots. Overall, cool game, like it.