I like the art and its always nice to see controls baked into the world to make it more seamless, good game!
Obviously with it being a game jam it was not possible, but adding some other objectives to complete whilst balancing not massacring everyone (or massacring, whatever floats your boat) would add more depth to the gameplay
Also I know the theme was 'out of control' but adding some sort of tell for when the sword is about to rampage would benefit the user a lot, something like a quick struggling animation which lets you know whats about to happen