Thanks for playing my game Toasty~
I really enjoyed playing yours and I'm glad you told me about those issues since you gave really good feedback. It's very strange that the game seems to work better for you outside of fullscreen so I'm definitely going to need to look into that. I am also going to try and fix that bug that caused you to crash. I'm really sorry that happened to you and I will try to reproduce it on my end and get it fixed as soon as possible.
As for why there is no sfx it was mainly that I just didn't have time~ I am interested in continuing this project, not sure how far I will take it I'm not satisfied with the way it is right now so I appreciate feedback very much, thank you~
I like the idea of letting the player aim their bullets so I'll play around with that after fixing the problems you mentioned, thank you for the suggestion~