One of the loading screen blurbs has a spelling error.
"Thanos is a mad titan and nihilist, who's sole ambition is..."
The word whose should be used instead of the contraction who's

Edit: A friend just pointed out to me that the word being should also be pluralized in the final sentence. The last sentence in general reads a bit strange to me. I don't think there should be a comma after "cosmic power" (I'm not taking issue with the use of an Oxford Comma). The comma implies that "has traversed", "growing", and "becoming" is a list of three separate things Thanos has done but I would say that he has grown and became while traversing.