He never invented the DeLorean in HIS timeline either. The rules of overriding timelines here are kinda fuzzy. Up until Edna runs Citizen Brown over in the DeLorean, you can look at the 1986 newspaper in your inventory, and it'll say "Bedlam at Brown divorce hearing. Wife takes potshot at estranged hubby, famed industrialist Emmett Brown." with a picture of Doc and Edna yelling at each other. So the end result would have been that Citizen Brown got exactly what he wanted, but he and Edna still didn't have a happy marriage even without science.

​@@CFijWPGI did not know that about the newspaper. I'll need to check that out. Thanks for the tip

Back to the future that is

and to help him get back to 1885

I'm guessing that since Mr. Strickland is aware of Marty's relationship with Doc Brown that his parents are also aware of it.

@@Tubewings Also potentially since this Doc sticks around in 86, perhaps George got a better chance at knowing him.

The first American McFly was an immigrant who Marty met in 1885. That McFly as well as his son (the truck driver) look like Marty. Then, Arthur and George look identical, and then Marty and his son look identical. So, the McFly genes keep alternating every two generations. Marty's grandson will likely look just like George.

There also may have been Mcflys with their own unique face but George and Marty I think have the strongest genes in the family, which could explain why many of their relatives looks identical to them.

There are many things in this movie with the car disappearing and reappearing all the time in front of people and the frequent loud talks between Marty and many people, that don't line up to the original trilogy, in the account of the space-time continuom.

Time travel can be complicated at times

Something curious that Doc said exactly in this part of the game, is that the timestream is starting to catch up after Edna changed the past, but since Doc and Marty aren't from 1931, and it hasn't reached their original point in time. Most likely with Back to the Future II, old Biff was able to return to the original 2015 since the timestream hasn't catch up to that year yet, although, something curious that we were able to see in one of the Deleted Scenes of Part 2, old Biff doesn't start to disappear until Marty and Doc go back to 1985. And this theory makes some sense with the first movie when Marty changed the history of his parents in 1955, the photo of Marty and his brothers took days to adapt in 1985. Although also this theory doesn't make sense on Part 3 regarding the tombstone of Doc found in 1955, since when Marty changed the past in 1855, the changes in the photo were almost instantaneous. I guess the time stream acts in strange ways depending on how big the events are altered...

no

I wish it would though so we could see what year is Marty going to to "thrill" doc.

One can only hope we do get one