Osobuno is one of the most beautiful indoor amusement parks for children in Tokyo. It contains fun and safe games for children such as: the wonderful bouncy castle game, plastic ball room games, and many other fun games. There is also a library dedicated to parents to wait for their children while they play, you have to try the train room And a ball pit for your kids, the place is very clean with lots of different activities and playrooms. This will give you the best possible experience