This is an incredibly ingenious game with a simple premise and fun design, however it's just two inches short of a full game to me. Lacking any way to go to a "menu" and even exit the game without needing to right click the program from the taskbar, as well as the fact I apparently beat it in under 7 minutes my first run makes me worry a bit for people coming into the game with more strict expectations.
I had a exceedingly fun time playing this and I really love the art, concept, and execution, but I would request the dev to add a menu and exit ability (especially after finishing the game), and consider expanding upon the concept of the game and make a full story and adventure game with it (even if it was something simple, that additional "You must save the Princess!" and "Your princess is in another castle" gives it that tiny extra layer of detail for good fun.)
For now, this is definitely worth the 2$ investment for a unique experience and to further support the dev. It's is amazing to consider this is the first upload by them onto Itchio, so it's probably worth following them to see more games from them as I expect this creator to only get better with time.