Thank you for taking the time to leave a detailed feedback! I had challenged myself to step outside of my comfort genre's for this game jam & that has led to more areas of improvement than I thought but I am welcoming them with open arms as I see the player's perspective. :D
I've been noting all the issues down. All in all a few days of work & the game balance will improve massively (hitbox values, spawn range) I think the biggest challenge would be controls but having 2-3 control schemes (the directional ones as you mentioned & even control mapping) would cater to every player.
Again thank you for playing it & helping me improve the game!