4 years: How I Met My Monster (2013)
5 years: The Birthday Party of No Return (2012)
8 years: Welcome to Camp Slither and Help! We Have Strange Powers! (2009)
9 years: Revenge of the Living Dummy and Creep from the Deep (2008)
18 years: The Mummy Walks (1999)
19 years: Invasion of the Body Squeezers: Part 1 (1998)
20 years: Don't Go To Sleep! (1997)
21 years: Egg Monsters from Mars (1996)
22 years: It Came from Beneath the Sink! (1995)
23 years: Monster Blood II (1994)