Of course it moves! It isn't real!! This can be seen by his excellent posture at the end when he is in his "space" suit!
15 of 6576 found this helpful. Did you?
Bruce and Cathy writes:
Richard O'Brien has said on a few occasions during interviews that this was a "hint" that Riff isn't what he seems to be.
15 of 6576 found this helpful. Did you?
Ravens_Revenge writes:
The hump isn't real. Riff doesn't even have a hump during the part where they undress Brad and Janet because he takes it out of his jacket to wipe off Janet.
15 of 6576 found this helpful. Did you?
Space_Magenta writes:
Mmkay... one might notice that Riff's hump is actually a piece of cotton...
15 of 6576 found this helpful. Did you?
Teri writes:
In the movie, part of Riff Raff's character is having a fake hump, that's why it moves around so much.