Demon - roller coaster - was created in 1976.
The Demon in Great America, California. (that was my beginner roller coaster)
Twister - roller coaster - was created in 1999.
Sleeping on a Roller Coaster was created in 1992.
Tremors - roller coaster - was created in 1999.
Stealth - roller coaster - was created in 2006.
Rattler - roller coaster - was created in 1992.
Hades - roller coaster - was created in 2005.
Whirlwind - roller coaster - was created in 1993.
Thunderbird - roller coaster - was created in 2006.
Whizzer - roller coaster - was created in 1976.
Balder - roller coaster - was created in 2003.
Griffon - roller coaster - was created in 2007.