As others have said it starts a bit slow. I'm sure with a bit more time to work on it, it could turn into something more fun. Having a look over the other comments, it seems like you're not very happy with yourself (or at least you keep apologising to others) and I understand the feeling but don't be so hard on yourself. It looks like this is your first game jam, and this kind of time pressured format and actually creating a finished game in 4 days is such a unique challenge that the first one is always going to be a very steep learning curve. My first and only previous game jam was not at all fun but it was a start and each time you make something new it'll be better and better
Good luck on future games!