I liked the strategy combined with the minigame undertale-esque cutscene battles. Unfortunately it froze on me like it did for some others!
You can right-click on the page in your browser and click "inspect", and then click "console" in the tab that comes up to see errors in your game if they appear. I don't have time to play it until it crashes again right now, but if you do that, you should see an error in the console when it freezes that will probably help you debug your issue.