There are six of these Intamin twisted impulse coasters currently in operation, but this one had to be modified shortly after opening in 2001. Originally it was about 186 feet tall, but the park has a 150 foot height limitation imposed by the city of Vallejo, California & the forward tower was changed from 90 degree vertical tower to 45 degree inclined tower. The rear tower is still vertical, but was shortened to 150 feet.

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