This is a list of some insane ride types that are not in the game (yet). Some are recognisable, others are quite strange and obscure. Some were made in-house by parks, and some haven't even been built. They might actually come to the game, considering how it hasn't been updated in a LONG time. (Please update Planet Coaster, Frontier!) NOTE: This is my own personal opinion of what should come - share your thoughts in the comments section.

I will order the rides by manufacturer and present them like this:
Ride Type (Example, Location)

B&M Surf Coaster (Unbuilt)
Vekoma Madhouse (Villa Volta, Efteling)
Vekoma Junior Boomerang (Velociraptor, Paultons Park)
Vekoma Flying Coaster (Stingray, Giant Wheel Park of Suzhou)
Intamin Half Pipe (Avatar Airbender, Nickelodeon Universe Minnesota)
Intamin Aqua Trax (Atlantis Adventure, Lotte World)
Intamin Zac Spin (Kirnu, Linnanmaki)
Intamin Space Diver (Flashback, Six Flags Magic Mountain)
Intamin Suspended Catapult Coaster (Volcano: The Blast Coaster, Kings Dominion)
Intamin Swiss Bob (Disaster Transport, Cedar Point)
Mack Rides PowerSplash* (Pulsar, Walibi Belgium)
Mack Rides Xtreme Spinning Coaster (Time Traveller, Silver Dollar City)
Mack Rides Rocking Boat (Unbuilt)
RMC T-Rex (Unbuilt)
Dynamic Attractions SFX Coaster (Mission: Ferrari, Ferrari World)
Dynamic Attractions Dual Power Coaster (Mario Kart Experience, Universal Studios Japan)
S&S Steeplechase Coaster (Unbuilt)
S&S Axis Coaster (Unbuilt)
Sally Trackless Dark Ride (FNaF: The Ride, Unbuilt)
Golden Horse Broken Rail Coaster (Battle of Jungle King, Hefei Sunac Land)
AIW Ghost Train (Over The Hill 2: Spooksville, Adventure Island)
AIW Giant Swing (The Time Machine, Adventure Island)

*Looping version? Maybe?

What do you guys think about this list?