Question: What roller coaster located in North Rhine-Westphalia, Germany is designed in a western style?
Context: Phantasialand is a theme park in Brühl, North Rhine-Westphalia, Germany that attracts approximately 1.75 million visitors annually.  The park was opened in 1967 by Gottlieb Löffelhardt and Richard Schmidt.  Although starting as a family-oriented park, Phantasialand has also added thrill rides, especially during recent years.  Furthermore, following the example of Europa-Park, they have decided to attract business customers beside the regular ones, calling it "Business der neuen Dimension" ("business of a new dimension"). The Giant Dipper, also known as the Mission Beach Roller Coaster, is a historical wooden roller coaster located in Belmont Park, a small amusement park in Mission Beach in San Diego, California.  The Giant Dipper was built in 1925.  The roller coaster and its namesake at the Santa Cruz Beach Boardwalk are the only remaining wooden roller coasters on the West Coast designed by noted roller coaster designers Frank Prior and Frederick Church. The Wild Cat (initially The Joy Ride) was a wooden roller coaster located at Hersheypark in Hershey, Pennsylvania, United States.  The roller coaster was constructed in 1923 by the Philadelphia Toboggan Company (PTC).  Under an agreement between Hersheypark and PTC, Hersheypark leased the land the coaster occupied, while PTC owned and operated the coaster.  The agreement was for 15 years, at which point they had the option to extend the contract.  The contract was ultimately extended to 1945.  The roller coaster operated from June 16, 1923, through September 1945.  PTC and Hershey Park elected to close The Wild Cat and construct a new roller coaster in 1946. Colorado Adventure is a steel roller coaster located at Phantasialand in Brühl, North Rhine-Westphalia, Germany.  During construction, it was decided to opt for a roller coaster in a Western style rather than a traditional roller coaster.  The name Colorado is derived from the U.S. state of the same name, well known during the ‘Wild West’ period in the USA. The New Revolution (formerly known as Revolution, Great American Revolution, and La Revolución) is a steel roller coaster located at Six Flags Magic Mountain in Valencia, California.  Manufactured by Anton Schwarzkopf and designed by Werner Stengel, the roller coaster opened to the public on May 8, 1976.  The New Revolution is the world's first modern roller coaster to feature a vertical loop and has been recognized for that accomplishment by American Coaster Enthusiasts (ACE), who awarded the roller coaster its Coaster Landmark status. Leap-The-Dips is a wooden roller coaster located at Lakemont Park in Altoona, Pennsylvania.  Constructed in 1902 by the Federal Construction Company and designed by E. Joy Morris, it is the oldest operating roller coaster in the world and believed to be the last surviving side friction roller coaster of the figure-eight variety.  Leap-the-Dips operated continuously until 1985, when it closed after falling into disrepair.  A fund-raising campaign led to its restoration, with refurbishment efforts beginning in 1997 and ending with a grand-reopening in 1999.  It was designated a National Historic Landmark in 1996 and received the Coaster Classic and Coaster Landmark awards from American Coaster Enthusiasts. Roller Coaster (Vietnamese: Tàu Lượn Siêu Tốc) is a steel roller coaster located at Dam Sen Cultural Park in Ho Chi Minh City, Vietnam.  Built in 1998, it is the first roller coaster in Vietnam.  Until the opening of a similar roller coaster at Đại Nam Văn Hiến which has 4 inversions, the Dam Sen roller coaster had the most inversions in Vietnam. Griffon is a steel Dive Coaster roller coaster located at the Busch Gardens Williamsburg amusement park in James City County, Virginia, United States.  Designed by Bolliger & Mabillard, it is 205 ft high, and is the second-fastest (71 mph ) Dive Coaster built.  The roller coaster features two Immelmann loops, a splashdown, two vertical drops and was the first of its kind to use floorless trains.  Griffon was announced to the public on August 23, 2006 and opened on May 18, 2007 to positive reviews by both newspapers and enthusiasts.  In 2007, "Amusement Today"' s annual Golden Ticket Awards voted it the third-best new steel roller coaster of that year and the 27th-best steel roller coaster.  It was voted the 33rd-best steel roller coaster in 2013. Temple of the Night Hawk is an enclosed roller coaster located at Phantasialand.  Founded in 1988 after 18 months of construction, the ride was originally called ‘'Space Center'’.  The ride led passengers past models of rockets and emulated asteroids and the darkened hall was dimly lit with thousands of tiny spots of light to resemble stars.  Due to the construction of the neighbouring Wurze Town in 2001, the roller coaster was redeveloped with a fantasy jungle theme and was renamed as the "Temple of the Night Hawk".  The roller coaster is now completely dark.  Until 2006 there were some green moving lights and strobe lights in the first lifthill, still present today, but not operational.  In 2008 the Lights on the coaster trains were turned off or broke down and have never been repaired since then.  Till 2010 there was a green laser projection with the outlines of a flying hawk and until June 2012, there were some red strobe-lights at the final brakerun.  In 2011, the park installed new strobe lights in the first lifthill, which broke down after about two months, and were never repaired since then.  The ride has four trains and one spare train for repairs each with seven cars.  Each car has two rows of seats each holding two people.  During the four-minute ride time the trains are lifted by three lift hill chains, 1.174 metres of track.  The roller coaster is therefore one of the longest indoor roller coasters in the World, slightly beaten by "Mindbender" in Galaxyland Amusement Park, Canada.  The hall in which the track is located is around 120,000m³ in size and rests on 180 concrete pillars which are 12 metres deep in the ground.  In the basement of the hall is the ‘'Hollywood Tour’' darkride.  The total investment for the ride was around 15 million DM. Goliath is a steel Hyper Coaster located at the Six Flags Over Georgia amusement park in Cobb County, Georgia, United States.  Designed by Bolliger & Mabillard it reaches a maximum height of 200 ft , a top speed of 70 mi/h , and has approximately 4480 ft of track.  Great Gasp and Looping Starship were both removed by the end of the 2005 season to make room for the roller coaster.  Goliath was announced to the public on September 1, 2005 and opened on April 1, 2006.  In 2006, "Amusement Today"' s annual Golden Ticket Awards voted it the fourth-best new steel roller coaster of that year and the 9th-best steel roller coaster.  It was voted the 7th-best steel roller coaster in 2013.
Answer: Colorado Adventure