Did H2 still happen?

Second film happened and mentioned. John Tate : You told me you watched him burn. Laurie : I didn't exactly stick around to see his ashes.

"He came home." - Dr. Sam Loomis from the original HalloweeN

You also see newspaper clippings of Laurie in a hospital gown, sitting in a wheelchair before she's loaded into an ambulance, that was a still of H2, giving a slight nod that it did happen.

This film includes the events of H2 but it picks and chooses which plot points to acknowledge while conveniently ignoring others. It didn't help that the diretor (Steve Minor) admitted in interviews that he considers H20 a direct sequel to H1.

To simplify things, I think H2 should have been ignored altogether and have H20 pick up 20 years after Michael disappears from the Doyle's back yard at the end of H1. There wouldn't be any baggage to address from ANY of the sequels and H20 literally could have started with a clean slate.

Both Halloween 1 & 2 happened. This is the direct sequel.

(in this cannon at least)

I like to think 4-6 still happened. One could argue that Laurie faked her death and left Jamie behind as she didn't want her daughter to go through a life in hiding. The killings 4-6 could have been kept quiet by the Haddonfield police who didn't want national negative publicity to come to their town. Maybe Michael sensed that Laurie might still be alive when he realized killing Jamie and other family members in 4-6 didn't stop his curse. The only outlier is the Myers house being different in Halloween 5. Perhaps the Myers house in 5 was a different house the family lived in before the one seen in the other films. The look of the Myers house in Resurrection could have been decorated to look spookier by the reality TV show which would explain why it is not remodeled as it was in H6.