Thanks so much for the feedback! :D
The difficulty probably did rely too much randomness, since the enemies shoot in random directions. This does feel pretty unfair regarding the walls of bullets, with the best tactic a lot of the time being waiting until the enemies stop randomly shooting in the direction you need to go., which is pretty boring. I'll make sure the difficulty in my future games is more fair and doesn't lead to boring strategies.
I knew that the diagonal movement felt faster but didn't know how to fix it, thanks for the tip! Definitely gonna do some research into vectors since I know basically nothing. Maybe I could pass it off as an advanced movement option (it would fit the theme of intentional bugs), lol.
The restarting the game thing was due to me running out of time, I'll probably make a post-jam update so it doesn't play that cutscene every time you restart.
Sadly, the program I used to make the game (pico-8) doesn't allow you to change the input types, which really sucks. I'll try to find a workaround because I agree that the lack of options makes it harder to play for a lot of players.
Thanks for the detailed feedback, I really appreciate it! :)