I've only played a handful of gamejam games all the way to the end, this being one of them. This game is extremely polished and very well made. I love the graphics, the lighting is very well done (except in a few places where it's just a little too dark), the sound effects give the right amount of juice to the game, and the soundtrack is awesome. I'm assuming that you used Unity's Particle System to create the particles. When I think of particles created using Unity's Particle System, I think of huge and ugly blobs, but the particles in this game are extremely well done. I don't have any negative feedback except for the darkness issue that I've already mentioned. If this ever turns into a full Steam release, I'd definitely buy it. Excellent job!