Adventure Express

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.

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.

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.

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).

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 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.

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.

Phantom Theater: Opening Nightmare is an interactive dark ride at Kings Island in Mason, Ohio, United States. Developed by Sally Dark Rides with interactive technology supplied by Alterface, the attraction opened on April 18, 2026. It is a reimagining and revival of Phantom Theater, which operated at the park from 1992 to 2002, and occupies the same building previously used by Boo Blasters on Boo Hill. The attraction was announced in August 2025 following years of continued fan interest in the original Phantom Theater, which made a brief return as a live stage show in 2022 and 2023. Rather than reconstructing the original ride, designers created a new storyline featuring both returning and new characters. The previous Omnimover-style ride system and general track configuration were retained, while the interior was rebuilt with new scenery, animatronics, and interactive projection effects. Set inside a haunted opera house, the storyline follows organist Maestro after a lightning strike scatters enchanted “ghost notes” throughout the theater. Riders use handheld flashlights to capture the projected notes for points. The attraction contains 33 animatronics across 26 scenes and lasts approximately six minutes. Reviews praised its nostalgic theming, updated animatronics, and modern interactivity, while noting its lighter tone and the potential for gameplay to detract from the story.

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.