This is a pretty cool concept, I didn't quite know the best way to go about getting through the maze until I read your description saying you have to take risks which is quite the gamble everytime you wander into a dark room. The insta-kill mechanic seemed a little harsh but maybe that's why we fear the dark lol.
The controls did feel a little funky though, it took a bit for my brain to get a hang of pressing the right arrow, then the up arrow, then space to move to the right. Maybe dedicated buttons like z and x for lighting up/blowing up the next room and a second tap of the arrow key to move that direction? I'm just tossing out suggestions, either way, great submission! It felt just like an old school rogue like with the discovery and random levels.