I tried out the game for a while and here's my thought:
The art is cool and looks fitting. The audio is also well chosen.
I didn't really get the gameplay though. Initially I though you had to aim with your mouse, but apparently you have to drag the gun itself. It's pretty hard to pinpoint the reticle while the whole screen is obscured, which (I think at least) was the point? Maybe I didn't understand what you have to do, but after level 3 it stayed the same. Maybe it would have been cool to have a short window where you have to remember a few spots and then, when it goes dark, you have to shoot those? But with the offset of the gun when dragging it around it has been pretty tough to hit anything
Nice interpretation of the theme, but for my taste a liiiittle lacking on the execution. Still good job making something happen during only 4 days =)