I enjoyed this one! I greatly appreciate the large health pool, especially since I'm normally awful at these types of games. I also appreciate the damaged artwork that Kasumi takes - that's some very nice polish.
Matte's suggestions are spot on (though the 1920x1080 issue wasn't that much of an issue for me, fortunately). The only other thing I'd add is that I'd like some kind of incentive or reward for defeating enemies beyond score. Since they only fire straight ahead, I'm not motivated to run the risk of losing HP to take them down.
Overall, I think this is a really solid entry to the jam! Excellent work!