The top attraction at this amusement park next to Tokyo Dome is the 'Thunder Dolphin' (¥1030), a roller coaster that cuts a heart-in-your-throat course in and around the tightly packed buildings of downtown. There are plenty of low-key, child-friendly rides as well. You can buy tickets for individual rides or a day pass (adult/child ¥3900/2100; after 5pm adult ¥2900).
