PEAK
Puzzle games are hard to make because you have to make something that a user can figure out, but make it wrack their brain or something so they get satisfaction from it.
One of my favorite things in this game is that the puzzles are very cheeseable but in a good way. Let me explain, on one part there's a giant winding black line that goes like a roundabout, and I'm like hell naw, not doing that, but then after some time I figure out that I can get the light to just jump immediately to the target position by perfectly aligning my cursor with the beginning, and I immediately am like, wow I am good at video games!
Making your puzzles have cool and think-out-of-the-box shortcuts are amazing, and I can't even tell if it's intended or not.
I would do the bonus cookie segments but I'm tired right now, so I'll think about it later. (Never mind it doesn't save my progress, I can't do it now. :( Note: not to say I want progress saving, there's no way you can pull that off in such a short time)
The graphics and lighting are very good as well, which is pretty amazing as visuals are normally not a huge focus of puzzle games.
Highly underrated masterpiece, deserves at least a hundred more ratings.