interesting idea. simple, short, and none too difficult. about the only real gripe i can make is that it seems a bit tedious to always be waiting for the right direction to come along, but then getting annoyed if it speeds past due to placement. i'd say it could be longer, but then i think it'd detract from the feel of the game. meh. it's about right for a one-shot, really. half hour game. maybe twenty if you're good (which i'm not).