I thought this game was a lot of fun!! It's pretty interesting in concept and I think you executed it pretty well actually. While there's a level of difficulty to avoiding walls, monsters, etc. it's generally avoidable as long as you flicker your flashlight and the fun part also comes with memorizing where it is you come from and where you have to go. This is a really great way to utilize light as a mechanic, so bravo!
I like games with this sort of minimalism too, and it feels very simple and clean. I think the gameplay itself is well polished in appearance, though I wonder if there could have been more interest or complexity through things like shadows being a different value from backgrounds, different enemy shapes, etc. The long drawn shadows stretching to the borders is a great touch tho, makes enemies feel large and threatening just based on how large the shadows are. I also liked the sound design; the music is nice and the light sound feels like I'm letting electricity or something pass through lol
all in all, great game! I had fun playing it :) I think if you could fix some balance issues with things like monsters that swarm and move when the light isn't on (mostly that) it would easily be a top playable game, similar to titles I like such as Cats are Liquid or Hue.