A small coaster with short drops and curves, Primeval Whirl runs through the jaws of a dinosaur, among other things. What makes this coaster different is that the cars also spin.

You can’t control the spinning—it starts and stops according to how the ride is programmed. Sometimes the spin is braked to a jarring halt after half a revolution, and sometimes it’s allowed to make one or two complete turns. The complete spins are fun, but the screeching-stop half-spins are almost painful. If you subtract the time it takes to ratchet up the first hill, the actual ride time is only about 90 seconds.

A Queens, New York, reader thinks Primeval Whirl is more evil than prime:

Primeval Whirl is a terrible ride on so many levels. My daughter nicknamed it Primeval Hurl.