Thank you for showing interest in this project! It really means a lot!!
The game is playable on windows. As for why your stuck on the title screen I have a couple ideas. This demo uses arrow keys and space bar. If you already tried using those keys then my next guess would be something about the window size, graphic mode display, or directX version, which you should be able to access in the config of the games folder.
I hope this was able to help and Thank you for reaching out! If you're still having trouble or have any other questions, I'm always here to answer them. Thank you :)