Hi! I'm not the programmers, but I can address some concerns. We are aware of the try again button issue, and are working on a post jam version that fixes these things. The door with the arrow that can't be opened is by design, supposed to be unlocked after playing all 3 minigames, which you go back through and explore the house to find. Obviously, we wanted to add objectives, but they failed last minute.
I really hope you liked the game otherwise, and will come back to it post jam when we fix all the issues that people have brought to light. This is our first game as a group, and we want to make more in the future, so this is so very helpful. Thank you so much!