Six Months To Live (1977)
It's Murder (1978)
Attack Of The Helping Hand (1979)
Clockwork (1979)
Within The Woods (1979)
The Blind Waiter (1980)
Stryker's War (1980) (though it's unclear whether people mean the actual short or a retitled version of the Thou Shalt Not Kill Except trailer)
Toro Toro Toro (1981)
Cleveland Smith Bounty Hunter (1982)
The Sappy Sap (1985)
Although Stryker's War and Holding It are to be released on DVD later this year as part of Synapse's re-releases of Thou Shalt Not Kill Except and Running Time, respectively, both directed by Josh Becker.