This game is surprisingly fun and very addictive!
Good design of various signs, while the constant word sign at the end of each direction grinds attention away from the game. The active music keeps up good attitude whilst play is enacted, to certain extremes in which the effective mute button is appreciated.
The directions are clear, but easily distracted by the various signs to the sides. the three second timer could be reduced as long periods of play could become a strong irritation.
Pretty interesting - especially for those of us who work in shops all the time.