The Beast (roller coaster)

The Crypt was an indoor Giant Top Spin ride located at Kings Island in Mason, Ohio. Former park owner Paramount Parks collaborated with HUSS Park Attractions to design and manufacture the ride, which opened as Tomb Raider: The Ride on April 5, 2002. The flat ride featured a variety of special effects that correlated with the theme of the 2001 film Lara Croft: Tomb Raider from Paramount Pictures. Under new ownership by Cedar Fair, Kings Island removed all references to the film from both the ride and its indoor queue line following the 2007 season. It reopened as The Crypt in 2008. An outdoor, smaller version of the ride opened at sister park Kings Dominion in 2005 as Tomb Raider: FireFall and closed in 2019.

The Bat was a suspended roller coaster located at Kings Island amusement park in Mason, Ohio. Designed by Arrow Development, it was billed as the "first of its kind" in the world when it opened to the public on April 26, 1981. The suspended coaster concept was a radical departure from traditional roller coaster design, where guests ride below the track instead of above. Previous attempts to build coasters that hang from the track were unsuccessful and date as far back as the early 20th century. Arrow solved issues by utilizing modern technology in the design, including its tubular steel track developed in 1959 for Disneyland's Matterhorn Bobsleds. Arrow constructed a working prototype in 1978 capturing Kings Island's interest, and their engineering department assisted with the development, construction, and maintenance of the ride. The Bat required 18 months of design and two years of manufacturing and assembly. The anticipation leading up to the reveal and opening was intense, as park officials disclosed very little while construction was taking place in view of park guests. Despite a successful launch and reception, the suspended coaster was plagued with mechanical problems and frequent closures over the course of its short lifespan. After a sporadic three seasons, the ride was permanently closed in 1983 and removed from the park. Arrow implemented improved banking and braking design in future installations that were more successful, such as Big Bad Wolf at Busch Gardens Williamsburg, which opened in 1984.

Vortex was a steel roller coaster located at Kings Island amusement park in Mason, Ohio. Designed and manufactured by Arrow Dynamics at a cost of $4 million, the ride officially opened to the public on April 11, 1987. Vortex debuted as the tallest, full-circuit roller coaster in the world with a height of 148 feet (45 m). It was also the first coaster to feature six inversions. Vortex occupied the same location in the park once held by The Bat, the world's first suspended roller coaster. Tied to the coaster's debut, attendance at Kings Island exceeded 3 million in 1987 for the first time. It accommodated more than 46 million guests throughout its lifespan, making Vortex one of the most frequently-ridden attractions in park history. It closed permanently on October 27, 2019.

Diamondback is a steel roller coaster located at Kings Island in Mason, Ohio, United States. Manufactured by Bolliger & Mabillard (B&M), the ride opened in 2009 as the first hypercoaster to feature a splashdown effect and the first B&M roller coaster at Kings Island. It is located in Rivertown just behind International Street and the Eiffel Tower. Diamondback was the biggest investment in Kings Island’s history at the time, costing $22 million to build, but that figure was surpassed in 2014 by Banshee. The coaster features a 230-foot (70 m) lift hill with a 215-foot (66 m) drop and a maximum speed of 80 mph (130 km/h). It is similar to Behemoth at Canada's Wonderland in statistics, layout, and seating.

Mystic Timbers is a wooden roller coaster located at Kings Island in Mason, Ohio. Constructed by Great Coasters International and designed by Skyline Design, the roller coaster opened in the Rivertown section of the park on April 15, 2017. The ride's fictional theme is set to the site of an abandoned logging company where unexplained events are taking place. During its marketing campaign, the finale element in an enclosed shed was not revealed to the public until opening day. Mystic Timbers was voted "Best New Ride" of 2017 in the annual Golden Ticket Awards publication by Amusement Today. Its opening also allowed Kings Island to reclaim the title of having the most wooden roller coaster track of any amusement park in the world with 18,804 feet (5,731 m).

The Racer is a wooden, racing roller coaster located at Kings Island amusement park in Mason, Ohio. It was designed by John C. Allen, well-known for his contributions to roller coasters during the mid-twentieth century, and debuted at the park's grand opening in 1972. It was thrust into the national spotlight after being featured in an episode of the popular TV sitcom The Brady Bunch in 1973 and is often recognized for playing a vital role in the roller coaster renaissance of the 1970s. The Racer inspired similar designs in other roller coasters, such as Racer 75 (formerly Rebel Yell) at Kings Dominion and the now-defunct Thunder Road at Carowinds. The Racer is also one of the few original Kings Island attractions still in operation today.

Firehawk was a flying roller coaster located at Kings Island in Mason, Ohio. Manufactured by Vekoma, it originally opened as X-Flight at Six Flags Worlds of Adventure on May 26, 2001, billed as the Midwest's first and only flying roller coaster. Cedar Fair purchased Worlds of Adventure in 2004 and began efforts to downsize the park. X-Flight was relocated to Kings Island following the 2006 season, where it reopened as Firehawk on May 26, 2007. The roller coaster's layout was identical to Batwing, another Vekoma Flying Dutchman model from Vekoma, located at Six Flags America. Firehawk closed permanently on October 28, 2018, and was later demolished. On August 15, 2019, it was announced that Firehawk would be replaced by a new Bolliger & Mabillard coaster named Orion, a giga coaster that opened in 2020.

Orion is a steel roller coaster located at Kings Island amusement park in Mason, Ohio. Manufactured by Bolliger & Mabillard, Orion became the seventh giga coaster in the world when it opened to the public on July 2, 2020. It is the largest investment in Kings Island's history, costing an estimated $30 million. The coaster stands 287 feet (87 m), features a 300-foot drop (91 m), and reaches a maximum speed of 91 mph (146 km/h). It is situated in the Area 72 section of the park on a site formerly occupied by Firehawk.

Scooby's Ghoster Coaster was a suspended roller coaster at Kings Island in Mason, Ohio. Opened in 1998, it was billed as the first suspended roller coaster in the United States designed for children. The ride is also the first in the country from Caripro Amusement Technology, a defunct company once based out of the Netherlands and later bought by Vekoma. Scooby's Ghoster Coaster was removed in the 2005-2006 off-season to make room for other rides during the area's conversion from Hanna-Barbera Land to Nickelodeon Universe.

Woodstock Express is a wooden roller coaster located at Kings Island and designed by John C. Allen. It is located in the children's rides area of the park known as Planet Snoopy. The coaster has undergone four different name changes as the children's area in which it resides has been renamed and rethemed multiple times since the park opened. It has also been painted a number of different color schemes since its debut.

Adventure Express is a mine train roller coaster located in the Adventure Port section at Kings Island amusement park in Mason, Ohio. Manufactured by Arrow Dynamics, the roller coaster opened to the public on April 13, 1991. A portion of the ride's design drew inspiration from the Indiana Jones franchise. Similar to other mine trains, the Adventure Express uses a lap bar restraint and does not feature any inversions.

King Cobra was a stand-up roller coaster located at Kings Island in Mason, Ohio. Manufactured by TOGO, the roller coaster operated from 1984 to 2001, and it was the first in the world to be designed from the ground up as a stand-up configuration. Other stand-up coasters that preceded King Cobra were sit-down models later modified to accommodate stand-up trains.