Friday the 13th, a Villain-Based Franchise of Slasher Movies (with twelve installments and a thirteenth stumbling through Development Hell), that revolves around the hockey mask-wearing, machete-wielding Psychopathic Manchild zombie named Jason …
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Menacing Stroll: Jason has the delightfully paradoxical ability to outrun any of his victims without actually moving faster than a slow lumber. In certain movies it borders on outright *teleportation.*
Mobile Menace: Hand-in-hand with the above. As Jason got visibly slower, his ability to move rapidly when no one was looking at him improved dramatically
More proof that Jason is implausible:
Jason X reveals that part of the reason that Jason is as unstoppable as he is is because he is able to regenerate himself; at one point, Rowan remarks that she had previously subjected Jason to electrocutions, firing squad, gas, and hanging, all to no avail.
It was taken further in the Avatar Press comics, as Jason is shown to be able to immediately grow lost tissue back from a grenade blast.
Too Dumb to Live: Many, many characters. Such as Ginny who gets her hands on a chainsaw, hits Jason with it — then, when he falls over, she drops the chainsaw and hits him with a chair instead.
• Most of the victims, period, as they go to Crystal Lake, by then aware of the fact that there have been multiple murder sprees but completely ignoring it anyway.
Willing Suspension of Disbelief:
• The only way any of the movies after the first one would be even possible would be if the audience just accepts that somehow Jason didn't actually drown as a child, ran away to live in the woods for some reason, and everyone just assumes that the missing kid drowned without looking for a body, including his own mother.
• An alternative is explored in that Jason's body was posessed by that little black eel monster you see in Jason Goes to Hell. You still need to give your suspension of disbelief two weeks off at Christmas though...