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Thunder Dolphin

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roller coaster
Thunder Dolphin
Tokyo Dome City
Location Bunkyo, Tokyo, Japan
Status Operating since May 1, 2003
Manufacturer Intamin
Type Steel - Hyper
Model / product Mega Coaster
Riders per train 24
Propulsion Cable lift hill
Height262.5 feet
Drop218.2 feet
Top speed80.8 mph
Length3,500 feet
Steepest drop80°
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Thunder Dolphin is an Intamin hyper roller coaster located at Tokyo Dome City in Tokyo, Japan. Thunder Dolphin's 3,500 foot long course passes through both a hole in the LaQua building, as well as through the Big O, the world's first hubless Ferris Wheel.


On 5 December 2010, a 25cm bolt fell from the ride and injured a 9-year-old visitor. Following this incident, Thunder Dolphin remained closed until 1 August 2013, nearly 3 years after the incident.