The only mechanics are movement and playing attack animations. Attacks bound to the U and I keys while moving with WASD and controlling the camera with the mouse — it’s just some kind of unfunny joke. The game even has bugs within its bugs, because the list of known bugs states there’s no sound, yet I have footstep sounds and something resembling music. There’s really nothing more to say.
P.S.: And the main character is definitely a witch, since she somehow manages to walk without having any feet.