While not quite in the same class as Sharkansas Women's Prison Massacre....
Kung Fury, scheduled to be released on YouTube for free in late May 2015, is about a martial-arts expert cop who goes back in time to fight Kung Furher (Hitler with skills). A time machine malfunction sends him back too far, where he has to deal with dinosaurs and Norse gods, among other things. At least that's what I get from the music video and trailer - check them out yourself, below.
David Hasselhoff (wiki) fights bad guys and rides a dinosaur in this over-the-top music video for "True Survivor", a song from the soundtrack. Hasselhoff is also, of course, appearing in Sharknado 3.
Kung Fury is described as an "1980s style action comedy that features arcade-robots, dinosaurs, nazis, vikings, norse gods, mutants, and a super kung fu-cop called Kung Fury."
The official trailer (from back when it was on Kickstarter):