At heart, this is a rather mean-spirited show. People conspire with the producers to create elaborate scenarios that will terrify unsuspecting victims. Watching people who are clearly terrified and in distress may not be fun for all viewers.
Some of the pranks feature faked violence, which often has the victim completely fooled but seems pretty obvious to viewers. There's almost no blood or gore, though some of the scenarios feature various levels of pyrotechnics.
No sex or nudity. This show is all about pranks, and there's little focus on romance.
Many of the victims react to the show's pranks with some choice words or phrases. These words are bleeped, but it's not hard to figure out what they're saying.