A quite moving game!
Back to the Future is my favourite science fiction trilogy, and after eagerly traversing all 5 episodes of this game, I must say it makes an inspiring and amusing sequel. Although not much effort was made to fill the environments with many citizens, as it would have been expected for a more realistic recreation of each era, the main characters, including new ones, are remarkably well polished in personality. The original ones were given the same personality and vibrance as in the films, in fact. In addition, Marty McFly feels just the way he's meant to be from the very beginning: a cool-yet-sloppy teenager. And even though he was played by a different voice actor, his voice sounds extremely similar to Michael J Fox's from a few decades ago.
The gameplay is quite similar to the Monkey Island series'. Attempting to slash the frustration of getting stuck, we are given a hint system that provides clues on demand without spoiling it immediately. These are entirely optional, so in general, it is a plus. Those who are used to the old sk00l point-and-click adventures may not need this anyway. The UI could have been made slightly better by adjusting the character movement by keyboard, which sometimes did not behave as expected. I also got myself into a strange bug in chapter 5, in which Marty may get into a place he's not expected to go to. Not saying where, but a reload doesn't hurt much here.
The story was both fascinating and touching in many parts. As Marty and Doc visit past and present instants of time, they find their own reality suddenly changing, often to the worse. It's like visiting the corrupted Hill Valley from Part 2, except that all alternate timelines are different, and they must figure out new ways to get back in time and save their reality. All this while helping past selves, avoiding running into other past selves, persuading alternative selves and making your opinion become heard on what spices to put on a week-old cabbage soup. Indeed.
I had relatively quick game sessions in this game, and now there isn't much reason to replay it. I guess these kind of games must come to an end, unless they make alternate endings like in The Walking Dead. I'm not sure whether I would have liked that in BttF, though. To conclude, I guess I'll go for 7.4/10. I would certainly send a friend back in time. *Back in Time song*