Hello, some thoughts:
1. Good job on random room generation : )
2. It would be nice to be able to use integrated itch installer isntead of manualy downloading it (it's bothersome)
3. Things I would add first to make the game more interesting:
- enemies shooting back to be more challenging
- wepon reload
- better path finding so enemies won't stuck so often
- longer gameplay, probably couple more rooms before the boss
- some bullet hit feedback, probably particle effect or sound effect, different on enemy and wall hit
- some music would be nice
That should be enough for starters, let me know if you want to actively develop the game, I'll be happy to test and give you more feedback and ideas.
Good luck :)