Ruther bought this book for the boys a few days before we left Japan. It's really cool because Nikki could play on the little drum and follow the beat of the songs. Whenever we go to those places that have UFO catchers, Nikki always begs for a 100 yen coin so he could play on those taiko drums. He really enjoys it and a 100-yen coin allows him to play 2 songs. Sometimes, he enjoys it so much he asks me for another coin! I wish there were games like those for kids here... Anyway, when Nikki saw this book, he really really loved it. He's been playing all the songs in this book even if the songs are written in Japanese! In fact, the book needs a change of batteries right now because they have been using it almost everyday! Hopefully, this book will last for a long long time still...