That is really awesome and I would try playing a Mario game in that style if it used that game engine. The difference with that one compared to others is that that engine looks like it was made with Mario FPS in mind while other game engines are made for other purposes, and modders make a Mario FPS from it. Awesome find, elduke!
i wish someone would do it yeah! it would be such a challenge haha i think with mario in first person i would rage alot more tbh haha