R.O.T.O.R.
Goddammit, this movie was A.W.E.S.O.M.E.!!!!! Well, to be perfectly frank, the movie was terrible, but so riffable that with the riffs it was extremely entertaining. This is up there with "The Room (2016 Live Riff)", "The Wizard", and "Mothra" as one of Rifftrax's best. If MST3K had done this, it would have been a classic that was up there with Pod People and The Final Sacrifice.