Absolute nail biter right there. I did not realize just how BIG the world was until I saw a I needed a second Gold Key and found another Silver Key I had no direct use for. The gameplay is rather nice, it's got a good hook. My main two pieces of feedback is 1) I think enemies should immediately loose their hitbox. I got cornered pretty badly in some spots. When dealing with a hoard of enemies, I had to despawn ones I defeated cause I couldn't fight ones behind them.
2) I think having some way to do a little dodge would round out the combat. I eventually did figure out I could turn-move-turn to avoid an hit, but maybe something like a timing based or cooldown based dodge could allow for mixing up the gameplay and adding interesting challenges while providing away to avoid incoming shots.
Oh, and maybe a moment to look at the front of naked enemies (assuming they have a front sprite).
But, I really like this one. I think this might be my favorite gameplay-wise and has solid potential in the future. I love the art and aesthetic. Overall, rather impressive project for a game jam. It's been cool seeing your ability an ambitious grow with each jam.
Oh, also, I thought the combination of old-school movement with point-to-shoot to be a really nice combination.