
Donald Pleasence looks like a turtle. Like Rafael in the first Teenage Mutant Ninja Turtles movie, Dr. Loomis even wears a similar coat, to hide his half shell. To public knowledge, he didn't know martial arts, despite his best efforts to teach a dear patient of his the secrets of ninja prowess.
"I spent eight years trying to teach him kung fu, and then another seven trying to keep him in a bullet proof vest because I learned that he would not dodge bullets." -
Loomis in a Half Shell
While Michael Myers could move about in stealth, he expressed no desires to maneuver quickly in plain sight, and was thus susceptible to several gunshots. Of course, turtles in time live long and prosper, though Donald Pleasence died in 1995. Had he lived long enough to experience the mass hysteria known as
"Halloween: Resurrection", he'd probably be very confounded if he saw Busta Rhymes pretending he knew kung fu, pretending to be Michael Myers, and maybe even pretending to be Michael Myers
doing kung fu. Now, for God's sake, he can do kung fu?!
"He was doing very well last night! Maybe someone around here gave him lessons!" -
Loomis Rolling Over in his Grave
So naturally, if Donald Pleasence is a turtle, then that explains how Dr. Loomis survived the explosion in Halloween II. He ducked into his shell. The senile doctor ninja aspect of his character also explained his axe-throwing abilities, as demonstrated in
"Prince of Darkness". However, his character of Leo in
"Alone in the Dark" is likely coincidental, as the film came out before TMNT even existed, though with obvious similarities, Kevin Eastman was surely inspired by Donald's turtle-like aesthetic and ninja abilities.