This was a surprisingly challenging game to play. I can honestly say that I did not manage to fetch 10 of the flashy boxes.
Really interesting concept. I like games with simple controls; losing games because I was unable to remember the correct control sequence is not my thing. I really did go into this one thinking that it'd be easy to do. And it was easy to play; I even enjoyed the feature of having to find a place to turn around to take another go. And it is difficult to design a "simple" game yet still have it be challenging and enjoyable.
You must have put in a great deal of thought in building that world and making sure everything was attainable. Very nicely done. I tip my hat to you!