A derivative post script to an original and off beat first film.
It didn't stand up as a good film in its own right, with much of it's humour being predicated on finding the first film funny - A case of each scene being "do you remember when we did this bit in the first film - wasn't it funny when we did it in the first film?"
It didn't stand up as a good sequel either, with each act being patched together without any real cohesiveness.
Factual posts.