I'm really sorry about that! 🙏 I honestly don't know what the issue is with the itch.io browser version, and I'm sorry for the inconvenience.
Could you please have a look at the Windows/Mac build linked in the game description? The same version is available there, and hopefully the controls will work properly.
I'm really sorry you couldn't rate the game because of this, and thank you so much for taking the time and effort to play it! ❤️