Amusement & Leisure Parks

Tokyo amusement park located nearby Sensoji Temple in Asakusa. There are approximately 20 rides available with many of them for younger children. Open everyday from 10:00-18:00 at 2-28-1 Asakusa, Taito-ku, Tokyo 111-0032.
Odaiba Seaside Park
It is located on a popular man made island and overlooks the beautiful Rainbow bridge. It attracts not only young people but people of all ages. It is one of the most popular tourist attractions in Tokyo. Located at 1-4-1 Daiba, Minato-ku.
Joypolis Amusement Park
It is the largest indoor amusement park in Japan. Since it is indoor, it is fine to go there in any weather condition. There are special events on weekends. Business hour: 10:00-23:00
LaQua Amusement Park
The place is a combination of an amusement park, shopping mall, spa complex, and many other facilities. A perfect place for all age groups to hand out. 
Tokyo Disney Resort
A combination of two theme parks, with unique dining, a variety of shops and amusement rides. Accommodation is available including the Disney hotels. Located at 1-1 Maihama, Urayasu City, Chiba prefecture.
Tokyo Summer Land
A perfect place to beat the heat, with the indoor swimming pool. It is surrounding by green trees throughout the year, it also has many other water activities.
Yomiuri Land
Am amusement park with lots of green areas. It has a n awesome roller coaster called Bandit, that cuts through the green forest at 110/hr. It also has a seasonal water park, that operates only in summer from July to September.