Waaaay too easy..
I'll be honest, this game had potential, but a lot of the "puzzles" involved waiting for one of those things to step on a button or get out of the way so you can walk by them. It's really not that fun or challenging or... well, a puzzle at all when all you do is either wait or flip switches. There was only one puzzle that made me think a little, and that was one of the last ones.
Also the difficulty, or at least the very small amount of which is inconsistent. It goes from easy to slightly easy to "go-up-and-push-this-to-the-left-and-
you're-done", like the one where you push the icecubes to the side and that's it.
I'm not gonna give it a zero, though. All this game needs is some challenge. Maybe if there was a Monkeymetric 2 or +. The music is nice, too, but to be honest... that's really all there is to it.