Nice use of limitation and presented really well! The skeletons were my favourite part of this - I personally think their attacks are well-balanced. You have enough time to get away from them before they strike, just don't get cornered by one (or two!) Exploring the maze and avoiding skeletons is decent enough gameplay and tense, but giving the player additional choice or actions to perform could make it even more engaging. Sacrificing some of your light to pause a skeleton for a second, for example. Or an extra life you pick up if you go right instead of straight to help you through a rough patch on hard mode.