Reasonable, and even a little bit challenging here and there. Only a little, tho. :) I didn't like the way that successsive levels didn't get successively harder; they fluctuated in difficulty wildly. But I appreciated the fact that it never demanded that I balance an object perfectly, like Perfect Balance #1 did.
Quite fun to weave in and out of traffic but I never seemed to be in any real danger. Then I lost interest completely on level 6 when I was forced to go back and grind earlier missions in order to earn stuff to allow me to progress.
Nice idea, but gameplay consists of a little too much waiting in quiet corners, as well as hoping the randomness of the enemies works in your favor. Perhaps if some of the guards has fixed patrols rather than random movement, it'd play better.
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