Vortex (Kings Island)

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.

The Beast is a wooden roller coaster located at Kings Island amusement park in Mason, Ohio. Designed and manufactured in-house for approximately $3 million, the ride opened in 1979 as the tallest, fastest, and longest wooden roller coaster in the world. Decades later, it is still the longest, spanning 7,361 feet (2,244 m) across 35 acres (14 ha) of hilly terrain. Two lift hills contribute to the ride's duration of more than four minutes, which also ranks as one of the longest among roller coasters. A refurbishment in 2022 increased the angle of the first drop and lengthened the ride by 2 feet (0.61 m). The Beast was designed over the course of two years without assistance from scientific calculators and computers. Lead engineers Al Collins and Jeff Gramke consulted with well-known coaster architect John C. Allen, who shared design formulas and strategies to assist during development. Issues discovered during early testing delayed plans to build an enclosure over the helix finale until 1980. Ruth Voss, the park's public relations manager who would often overhear construction crews calling it "a beast of a project", is credited with coming up with the ride's name in early 1979. The record-breaking coaster was well-received at a press event preview held on April 13, 1979. Since its opening, The Beast has consistently ranked in the top ten among wooden coasters in the annual Golden Ticket Awards publication from Amusement Today. It has also earned a favorable reputation across the industry, including praise from American Coaster Enthusiasts (ACE), which held one of its first official events at Kings Island in 1979. ACE awarded the ride its Roller Coaster Landmark designation in 2004. After more than 40 years, it also remains one of the most popular rides at Kings Island, having accommodated over 54 million riders.

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.

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 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.

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.

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.

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).

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.

Delirium is the name of three Frisbee rides located at three Cedar Fair parks – California's Great America, Kings Island, and Kings Dominion. The installation at California’s Great America, the smallest of the three, was designed by Chance Rides and opened in 2002. The installation at Kings Island was designed by HUSS Park Attractions and opened on April 12, 2003, as the largest Frisbee ride of its kind in the world. The record-setting ride is able to swing 50 passengers up to 76 mph (122 km/h) reaching a height of 137 feet (42 m). Mondial manufactured the version of Delirium at Kings Dominion, which opened in 2016. It accommodates up to 40 passengers, reaches a top speed of 60 mph (97 km/h), and swings to a maximum height of 115 feet (35 m).

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.