Very nice idea & implementation of the theme! The constant effort of swirling the mouse/having to be present to swirl the mouse makes the chase feel much more intense. Really smart idea for an atmospheric/chase game. My only initial thought is that the levels could have been kept a little shorter or perhaps there could have been something offering a little extra nudge in the direction of the goal - I got hopelessly lost at points and just had no sense of where I hadn't already looked.