I have played a couple games now that used death to give the player some additional traversal options and I have yet to grow tired of it, especially considering that same concept was almost the one I went with, too. While the overall loop was pretty simple and I cannot say I ever felt challenged, I think it would only take a little more improvement to get a Doom style shooter out of this game. You should be proud of what you have made here! Thank you for sharing your game with the world.