A JAPANESE theme park is getting ready to unveil the world's steepest roller coaster, with a 121 degree incline and speeds of 100 kilometres per hour. The ride, which cost a whopping $40 million to build, is found at the Fuji-Q Highland Amusement Park in Yamanash, and has been named 'Takabisha' - which means 'dominant' in English. According to The Daily Mail, Takabisha, which has Mt Fuji as a backdrop, is set to open on July 16 this year. It's packed with jaw-dropping features including seven twists, blackened tunnels and a 43 metre high peak. But the most impressive thing about Takabisha is the freefall at 121 degrees, which is so steep it's Guinness Book of Records-worthy. Relying on a combination of gravity and a set of linear motors attached to the cars, you'll be strapped in and flung down the incline at 100 km/h, experiencing a feeling of weightlessness as you go. The current Guinness World Record-holding roller coaster is the UK's Mumbo Jumbo ride at Flamingoland in Yorkshire. This ride has held the title of "The World's Steepest Roller Coaster" since July 2009, but with an incline of just 112 degrees, Takabisha will be an essential 9 degrees steeper. Once the ride has been certified, it will be the 14th Guinness World Record set by Fuji-Q, which is one of the leading amusement parks in the world for thrill-seekers. When it's up and running, Takabisha will cost $11.75 (Y1000) to ride, excluding park admission fees.