Johntoy Memory Lights Start the game by pressing two buttons. The game displays a color sequence that you must remember well. Then you must press the correct colors in the same order. With each round it becomes more difficult to remember the sequence. This game is a good trainer for your eye-hand coordination and your brain. The pocket format means you can take the game with you anywhere. Specifications: Number of players: 1 player Gender: junior Color: multicolor Age: from 4 years Diameter: 23 cm Material: plastic Batteries: 3x AG13 button cell batteries (included)