I first got on a roller coaster on May 10, 2007, Greezed Lightnin' at Six Flags Kentucky Kingdom. Of the 35 roller coasters I've ridden: 27 still operate in their original locations. One has been re-located and re-named. One has been converted from stand-up to floorless, with the same track. 5 are completely gone. Here's my ratings: 90-100 - A - A must-ride. 80-89 - B - Worth your time, a good roller coaster. 70-79 - C - An okay roller coaster. 60-69 - D - Not very good. 0-59 - F - Don't ride this one. A bit of advice: If you're scared of roller coasters that go upside down (like I was in 2007), don't be. Inversions are fun as heck. Thunder Run - Kentucky Kingdom - 85 / B Short, but quite fun. Ridden 2007 and July 18 and 19, 2018. Twisted Twins - KY Kingdom - 90 / A This was an excellent, peppy wooden coaster. Though its replacement is even better. Ridden 2007. CLOSED 2007, DEMOLISHED Road Runner Express - KY K...