What an interesting idea with the phasing through the purple walls and the sneaking. While the graphics seem a bit basic, they are hand crafted, which is cool! The movement itself is fine enough, but I could not really find a use for the sneaking and I had problems with enemies walking into my spot and then I could not attack them anymore. Clicking on attacks was very unreliable for me, using the keyboard worked much better. But you implemented so many things here, that is very impressive.