Why was Michael so weak?

i guess all the injuries caught up with him

I’ve been thinking a lot about this and it looks to me as if the only plausible explanation is that when Michael grabbed Corey by the throat he passed his vigour/lunacy/stamina onto him, leaving him exhausted. That moment (the attempt at strangling) shows that he was still strong, until he started staggering wherever he went right after that scene.

This is, if it’s not just careless writing.

[deleted]

Hes gay.

Because he didnt take his covid-shots, so he got sick. A normal person would most lightly be dead.

I don't think killing is what makes Michael strong, it's the mental suffering of people, that's why he was ok in 2018 in the psychiatric, because he was feeding of the pain of his crazy mates. Then when he escapes from the bus he starts killing because the mental suffering of someone Who is about to die must be like a feast for him, and he kills so much he becomes unnaturally strong and is able to defeat all the Mob after they beat him. However he is still a human and is badly injured, and after 4 years not killing much people in the sewer he is so weak.

So yes, I think he is a kind of psychic vampire infected by some kind of psychic entity (which also infecta Corey in Ends, btw) which feads from human pain and suffering.

Michael didn't become superhuman really until Halloween 4 and that is retconned since Halloween (2018).

While the answer to these questions are not spoon-fed to the audience, we know enough (particularly from the previous film) that a weak Michael was not an oversight. It was done for a reason. Therein lies the greatness. It forces us to speculate upon the nature of Myers on a deeper level than previously required. Ends was an intellectually challenging exercise.

My personal guess is that what happened on Halloween Night, 2018, in the previous two films (which Laurie referred to as Michael's "masterpiece") has corrupted the town so much that he no longer has the market cornered on Evil. This is represented by the characters who subvert expectations, such as the marching-band gang of bullies. Now seriously... when have band geeks ever been portrayed so sadistically in art? Intentional choice. Michael is weak because his Evil power is being shared in this community.

One thing is clear. When Corey first stepped into the sewer and was confronted by Michael, we witnessed a montage via some sort of telepathy. Something dramatically supernatural took place. What? It happens again when he is pinned to the kitchen counter grasping Laurie by the throat, immediately before she's freed up and slashes his wrists. Perhaps both times we saw something that hadn't been explored since Jamie Lloyd kills and forms a telepathic connection to her uncle in Halloween 4/5 from a different timeline. He corrupts people to be killers if he deems they are capable and worthy of doing so.

Corey took a lot of abuse, too, for an ordinary human. He even stabbed himself in the throat, after being shot a couple times. But he wasn't dead until Michael returned and decided he should be dead. Up to that point, he treated him like an apprentice or even a son. Corey kills a homeless man literally seconds after being confronted by Myers—his first actual murder.

Laurie Strode will be the next killer. Mark my words... you heard it here first.