Weird Back To The Future Attraction

I visited this giant skyscraper which housed this Back To The Future attraction. I approached this interactive screen which showed how you could visit different locations from the film, like Marty's house and Doc's lab, by stepping into the lift. However, before I could, I heard this woman mention something about dragons and that anyone who hadn't been here before would need to be paired with somebody else. I was confused, and asked someone nearby what they meant by dragons. Especially as there were no dragons in the Back To The Future trilogy. The person I asked said not to worry and he would pair with me. I checked my watch and realised I needed to return to my work from home job. As I left the skyscraper, I was approached by a couple of policemen, who said they knew about something dodgy happening at the Back To The Future attraction and they needed me to act as an informant.