This xylophone is very different and funny. The notes are swinging on a chain. You can use real world gravity. If you like bouncing balls you are at the right place. There are two balls for kicking the notes. When first played, your toddlers and babies may not be able to correctly touch the bells with his/her little hand. Play the game with your kids continuously for a few hours or days, and you will be surprised at the mobile development of your baby's hands. This game must be played in the presence of a mother or father, and it is encouraged for you to guide your baby through the game for a few days at first. When to play! When your baby is hungry or will not stop crying, playing this game can hold your baby's attention. (The various sounds, animated shapes stimulate your baby's curiosity.) This game is exceptionally handy for mothers and fathers who spend time with their babies but cannot figure out how to spend that time usefully. This game may be too advanced for infants under 12 months old. Caution Playing the application too much amount of time or leaving the children alone with the mobile phone or tablet pc is not encouraged.