Lock is a tap puzzle game where you need to tap right in time when orange stack is on yellow ball. Yellow ball will rotate over the circle. The ball will go on left or right side on the circle. Tap on screen at the right time when the ball and the stick match. Make best score at this game and have fun. Lock,tap puzzle game,matching game,timing challenge,reaction time,puzzle game,kids game,mobile game,reflex game,score game,yellow ball,orange stack,reaction,strategy,fun,addictive,easy to play,challenging,brain teaser,mobile puzzle,game for kids