@mossieur-patate, thank you so much for your lovely comments! I will respond to some below:
2. I'm really sorry about QWERTY only controls, this was on my list to get sorted but I ran out of time at the end of the jam. I will remember this for the future. 4. Running out time was also the reason for the lack of shooting/enemy death sounds - I tried a few but didn't like any of them, so I cut them. If anyone has any advice for working with repetitive sounds, I would be really interested! 6. The autofire issue is a good point - in larger games I make, I generally do have some reason not to use a verb, but in this game it probably should have been autofire. 10. I'm not sure what you mean by gallery, but, yes, you can fall and die by dropping through the floor. It's intentional, I do want the player to look at the ground they're moving on, hopefully it should add some tension. 12. It's infinite! No ending, it's all about the highscore! 15. Corner hugging is an option, but obviously you will have to deal with shooting enemies/floor issues etc. In a bigger game I would expand out enemy spawnings so this is less of an issue. "Bit more variety" - yes, this again, was on my list, but alas lack of time was an issue. I couldn't actually use the full 48 hours, so hopefully next time I can do that and make a bigger game.
Thanks so much for your detailed comments! It's interesting because what you mentioned is mostly what I thought as well, so that's good I think. Very helpful, thanks :)