yeah it's good! i've played a little bit of dusk and it's great, and i really like this because it trades the intensity of the shooter for an intensity with it's puzzles. it's very fun to just try and figure it out, to go over and over again just trying new things and patterns. i didn't play any of the custom levels, but the fact that it gives you free reign to upload and design your own is awesome. i'm also glad that this just doesn't take itself seriously at all! not that i was afraid it would, but it very much just seems like a very tongue-in-cheek game, just done very well. very cool!