I have an issue with the "Start" button, where the mouse pointer needs to be exactly over the word for it to work. If I move the mouse slightly down, it automatically switches to the "Options" button. I think it would be better to expand the clickable area to avoid this confusion and improve the user experience.
Also, when a cutscene is active, all buttons should be disabled.
Overall, the game is really great, and I enjoyed it a lot—I can play it multiple times