I enjoyed that quite a lot! At first I was a bit like "isn't this just Commandos but with a monster". Then it dawned on me that while in Commandos getting seen is probably a game over, this game differs in that you're not actively hunting the NPCs, you're hearding them to safety. That's a proper mechanical difference.
I was never quite sure how the lights worked. I think they behave like this: If an NPC steps into the light's illuminated area, it attracts them to huddle by it. Thing is, I'd have expected them to trigger if any illuminated area is within the vision cone of an NPC.
The random motion of the NPC makes it hard to dodge past them in level 5. If they were a little more predictable it might be a little better. The levels are very short though, so failure isn't as painful as it could be. I didn't figure that one out. I think you're meant to scare the two NPCs into the hall and steal the box, but on the occasions I managed to do that and get back to safety with it I ended up getting caught trying to figure out how it was useful. I noticed that it blocks the light, but didn't see how that was helpful.
Beautiful presentation. My only real nit to pick is that the fullscreen button doesn't actually make the game bigger. It sits in the same sized window, just at the top of a black screen. It's more like a "remove distractions" button. On my main 32 inch monitor, it's a bit too small for my old-man eyes to see clearly.
Well done, incredible to get this done in just 48 hours!