Medieval first person shooter... this looks like something I would make! Or a very cursed version of Heretic. I love the concept.
The genre shift is funny, but it took me about half the healthbar to figure out what I was supposed to do the first time, and it kicks you all the way back to the title if you lose. It's also pretty buggy, with some highlights disappearing or not appearing. Fortunately, the game is short enough that redoing it isn't the end of the world. I do wish there was more of an ending, though.
Overall quality unfortunately kind of falls into meh rather than so bad it's good. It has the feel of an asset flip, which can work but it's really hard to pull off, and it doesn't quite make it here.