Awesome!
The slashing was so satisfying!
I think I finished it, after what I think was 5 levels, It says "Traversing" and stays on that screen.
Good Job, was super fun!

really liked the feeling of the attack! it felt a bit punishing dying from one hit though

I have a solution to your well made game

string divide(double x, double y) {

    try {

        x = x / y;

        return str(x);

    } catch (DivideByZeroException e) {

        return "Infinity";

    }

}

Really satisfying movement. Took me some time to realize that the slashes face the mouse. Overall though, I think this could reach top 3 in this category if you get more ratings. Almost every level has something new to offer, whether it is a plusign tumbleweed or a divide sign that spits minus signs.