Cyber Sleuth spoilers, but I've always wondered how different and similar Kyoko Kuremi and Alphamon Kuremi are personality-wise, since nobody really noticed anything different after The Incident gave Alphamon a body to take over aside from her horrific coffee experiments. Think Alphamon assimilated the memories hard-wired into Kyoko's brain to figure out how to act like her, or did they happen to just be Like That™️ already and it was a lucky coincidence?
I mean, there's a post credits scene of the protagonist meeting the real Kyoko Kuremi for the first time after the universe is reset and the Eaters are gone, and she seems GENUINELY interested in trying coffee with mayonnaise (she saw Takumi/Ami was drinking coffee and had an open mayonnaise bottle and deduced it). It IS possible that the rebooted Kyoko somehow absorbed some of Alphamon's too.
