DDFF

https://en.wikipedia.org/wiki/Doctor_Doom%27s_Fearfall
https://www.universalorlando.com/web/en/us/things-to-do/rides-attractions/doctor-dooms-fearfall
https://tvtropes.org/pmwiki/pmwiki.php/Ride/DoctorDoomsFearfall
http://www.uofanguide.com/doctor-dooms-fearfall
https://www.orlandofuntickets.com/articles/inside-the-ride-doctor-doom-fearfall-at-islands-of-adventure/
https://parkpedia.wordpress.com/doctor-dooms-fearfall/