Night Of The Creeps Alternate Ending!

There are two versions of the film's ending. The version tagged onto the theatric and subsequent VHS release ends with Chris and Cynthia watching the sorority house burn down when the dead dog returns. The scene ends when the dog opens its mouth and a slug jumps out at the camera (and presumably infecting Cynthia). But this isn't the ending that I recall; the one I remember when I was a kid was the one that zombie "Cameron" makes it to a cemetery, falls to the ground were he unleashes the alien experiment. It always stood lingering in my head after the credits rolled. I don't know, but it was haunting, gave me nightmares for days! hope you dig it, enjoy!