It took a while to understand even after the intro, but once it makes sense, the gameplay is quite fun and challenging. I think the controls can be streamlined a bit maybe left and right to navigate folders and up and down to enter exit folders, the w,x,v,enter keys are in abit of an awkward position. There was also some subpixel movement which may be tricky to implement in Unity. The core gameplay makes you think quickly, overall an enjoyable game.