Theres an issue with playing the videos I assume, usually has to do with either the operating system or the graphics card (video card). Not sure and can't really help you there, feel free to refund the products with Itch.io.
Appreciate it.
Since I paid for the game, I tried the .APK for Android, and got that to work. After practicing on the "censored" broken version, I was able to enjoy playing w/ seeing animations, albeit on small(est) screen.
I want you to keep the pay to encourage you to keep developing new games and supporting existing ones.
If you cannot fix the Save functionality for OSX for this game, please make sure it works for subsequent games.
Keep innovating !