Well, 16 brave (or crazy!) coaster fans did just that as the Dodonpa shot off on its first journey.
Those who rode it said it felt like being fired from a rocket.
Passengers feel a force of about 4Gs - G-Force is a way of measuring how much gravity pulls on an object.
You would normally have to fly a jet fighter to feel 4Gs!
"I could not open my eyes and I had to hold my breath," she said.
"You hear 'Three, two, one , Don... don... pa!' before blasting off."
But its might was no match for nature and when it started snowing, the ride came to an end.