I played around with the controls because the last level was giving me trouble at first, sometimes even when I was simply hitting the key and letting go, the box would randomly move 2 spaces instead of 1. I mean it's far from impossible to beat, but it does become annoying on the levels where you actually need to be on a specific tile.
@davidjames65 you missed the point, Meters = Metric system, Miles = American system for some reason the author of this game put the two together for no real apparent reason. Feet would be the proper way to go or Kilometers if they kept to one system rather than two, might have well have just been using Twains, those are approximately what, about 3 Feet?