Thank you for your feedback! For the key's hitbox, the only hint is when you are in its range the "E" will appear, but I understand I might need to make it more obvious where that range is and a crosshair is a good idea. Thanks :)
Controls are WASD to move and SPACE to break the tombstones. To get to one of the ends, maybe after breaking all the tombstones, you should go home and rest ;) *hint hint*. The game is supposed to be mysterious hence the lack of instructions and any sort of direction. And I'm sorry you got stuck, I didn't know you could get stuck anywhere tbh.
