Neat and simple game, dodge asteroids, missiles? and lasers?! Man, I don't remember this happening during the moon landing wow! Jokes aside, loved the different challenges across the level and how the game progressively gets harder, it has a very arcade feel. I only have a few small nitpicks, one is that I wish there was fullscreen, the game doesn't completely fit in height and I had to choose whether to be able to see my health or not being able to see my health, it isn't much screen that is missing but it's still a bit annoying. The hitbox seems a little unfair, a small tap on the CSM or the LM of one pixel means you get hit, like I get it, but I feel these games feel more fair when their hitbox is slightly smaller than the actual sprite. Finally no audio, I assume you didn't have time to add them in, but if you plan on working on this game after the jam is over, I highly recommend adding audio into the game for some much needed auditory feedback. Speaking of feedback, also having some visual effect when you get hit, like a very subtle camera shake, or a hit-stop or damage-flash effect could be nice, or you could also do the old reliable adding iframes after you get hit with a sprite flicker, that fits the retro arcade vibe (it's also my personal favorite) and it would make it so that players get some grace period after getting hit so that they can adjust themselves before getting hit again.
Overall, good job on this one.