[…] I'm mostly emulating Cho Ren Sha 68k
Now that you named it, I can definitely see a bit of its design influence.
I've only recently delved deeper into analysis of "vertical shooter" design. Quite an interesting subject, especially considering I never gave its dynamics much thought back in the day. If you plan on expanding the demo (and haven't done so already) consider looking up some video essays by Lazy Dev (and their guests) covering shmups design. I'd also refer you to shmups(dot)com forums, but that may be «really» too old-school. 😅
edit: Oh, and good luck in the jam!
So, I'm having this font issue while running the game on Firefox (Linux).