Nice mechanics and graphics, but could have made the green gear more visually pronounced, took me a while to figure out that I had to click there! I think with a little more work on level design and sound this can become a great game!
I liked the graphics a lot and thought the concept showed a lot of promise.
I also found the interface rather confusing - Its weird to me that the green gear is both "Pull up menu of stuff" and "go" - It seemed like you were going for a very aesthetically pleasing menu over a functional one.
Unfortunately I couldn't figure out how to play, the interface was really confusing and there wasn't feed back when I was clicking on things so wasn't sure what else to do.
There should be tool tips or captions or something