Tim Curry was the first choice of Gingerclown.
(At around twenty-one minutes) Freddy Krueger's glove can be seen from A Nightmare on Elm Street (1984).
When Sam (Ashley Lloyd) is walking through the locker room, we can see a The Rocky Horror Picture Show (1975) poster on one of the locker doors. Tim Curry (Gingerclown) played Dr. Frank-N-Furter in The Rocky Horror Picture Show.
This is the first Hungarian horror comedy in 3-D.
Most of the sets in the movie are all original, it takes place in the Budapest Amusement Park, which was permanently closed on September 30, 2013. Some of the games shown in the film were operated by the neighboring zoo, for example the listed roller coaster, the merry-go-round, and the enchanted castle.