Delirium (ride)

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.

Banshee is an inverted roller coaster located at Kings Island amusement park in Mason, Ohio. Designed and manufactured by Swiss company Bolliger & Mabillard, the roller coaster opened on April 18, 2014. Banshee cost $24 million to build, making it the most expensive project in Kings Island's history at the time. With 4,124 feet (1,257 m) of track, Banshee was the longest inverted roller coaster in the world when it opened. The ride includes seven inversions and travels at up to 68 miles per hour (109 km/h). Banshee operates with three trains, each with eight cars, giving it an hourly capacity of 1,650 riders. Banshee was built at the former location of a wooden roller coaster named Son of Beast, as well as the Thunder Alley go-kart attraction. The ride was officially announced on August 8, 2013, although the "Banshee" name had been trademarked that April. The first track pieces were installed on August 27, 2013, and work continued through the following January. When Banshee opened, it was well-received, accommodating one million riders in less than three months. Amusement Today's annual Golden Ticket Awards has consistently ranked Banshee among the top 50 steel roller coasters in the world.

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.

Son of Beast was a wooden roller coaster located at Kings Island in Mason, Ohio, United States. Built and designed by the now-defunct Roller Coaster Corporation of America (RCCA), the ride opened to the public on April 28, 2000, as the tallest and fastest wooden coaster in the world. It became the first wooden hypercoaster – a height class of 200 feet (61 m) or more – with its record-setting height of 218 feet (66 m). The coaster was also the first in the modern era to feature a vertical loop, and it reached a record-breaking maximum speed of 78 mph (126 km/h). Son of Beast was themed as a sequel to one of the park's other signature attractions, The Beast. Son of Beast met an early demise following two serious, non-fatal incidents, with the first occurring in 2006 and the second occurring in 2009. After sitting idle for years, the closure was made permanent in July 2012 when Kings Island announced that the roller coaster would be removed from the park. It was replaced in 2014 by a new steel coaster, Banshee, which features a tombstone prop decoration in its line queue that pays homage to the Son of Beast. The height and speed records once held by the coaster remain unbroken.

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.

Kings Island is a 364-acre (147 ha) amusement park located 24 miles (39 km) northeast of Cincinnati in Mason, Ohio, United States. Owned and operated by Cedar Fair, the park first opened in 1972 by the Taft Broadcasting Company. It was part of a larger effort to move and expand Coney Island, a popular resort destination along the banks of the Ohio River that was prone to frequent flooding. After more than $300 million in capital investments, the park features over 100 attractions including fourteen roller coasters and a 33-acre (13 ha) water park. Early in its history, Kings Island appeared in popular sitcoms and received widespread recognition for its record-breaking attractions and events. One of the park's most well-known attractions, The Racer, is often credited with reviving worldwide interest in roller coasters during the 1970s. The Beast and Banshee are among other attractions that have set world records, some of which are still held today. Kings Island's largest single investment is Orion, a giga coaster that opened in 2020 at a cost of $30 million. The park has also suffered through times of negative publicity, particularly surrounding the early demise of roller coasters The Bat and Son of Beast. Kings Island is divided into several themed sections and operates seasonally from early spring through the fall, partially reopening for Winterfest during the holiday season. In 2021, Kings Island had an estimated 3.18 million guests, ranking third in attendance among seasonal amusement parks in North America behind sister parks Canada's Wonderland and Cedar Point. In addition, Kings Island has won Golden Ticket Awards from Amusement Today for having the "Best Kids' Area" in the world for eighteen consecutive years (2001–2018) as well as "Best New Ride" in 2017 for Mystic Timbers.

The Bat, formerly called Flight Deck and Top Gun, is a suspended roller coaster at Kings Island in Mason, Ohio. Built by Arrow Dynamics, the ride was known as Top Gun when it opened in 1993. It is the park's second suspended coaster following an earlier prototype from Arrow Development — also called The Bat – that operated at Kings Island from 1981 to 1983. The layout is designed to give riders the illusion they are narrowly missing track supports and other elements while swinging through sharp turns.

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.

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.

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.