Players spread out along one end line of your practice area, each with their own ball. The coach stands at the opposite end line, facing away from the team, and yells "Green Light". Players begin dribbling towards the opposite end line, but as soon as the coach yells "Red Light", they must freeze with control of their ball under their foot. Upon yelling "Red Light", the coach turns around and tries to spot any players who have not yet frozen. Any "caught" players have to go back to the initial end line and start over. Play continues until all players have made it to the finishing end line.

I recommend that cones or discs be used to set side boundaries as well, with the end lines approximately 20-40 yards apart depending upon player ages. Also, you might want to play this game first without balls until the players get the hang of it. The speed of dribbling can be mixed up as well. How "strict" the coach is should depend on age. With older kids, the players themselves can also take turns as the leader.