I like the color palette, the music, and the animations. I also like the central conceit that you need the flashlight to locate hazards, but the battery is very limited, so you can't keep the flashlight on all day.
More audio or visual feedback would have been welcome when the player hits a hazard. Because the spikes are invisible, it took me several tries to realize that I was getting killed--I just thought the game was teleporting me back to the spawn point, and I couldn't figure out why. :)