Ok, about the menus, I have no idea. Usually, whenever I would have the player lose and go to the game over screen, I would be able to click the buttons like at the beginning. But for some reason, the UI stops working once the game ends, and I couldn't seem to find a solution in time before the jam ended.
As for this project, I'm not sure. So far, the people who played it seem to like it, but I'm also considering continuing a different project. I'm not really sure at the moment.