Unfortunately this movie became a bit obscure as well, it was available in a very bad transfer on DVD (that is full frame and appears to have been taken from a VHS copy).
In youtube there's a version of the complete movie in the original widescreen.
The movie is not as good or fun as the original but it is good on its own and a solid sequel (much better than the remake and its made for video sequel). The music is fantastic in the movie. http://youtu.be/TlHEtcOTEZE