For as bonkers as a lot of kh story stuff is, the devs are actually very good at foreshadowing things, whether it be through design or gameplay.
Take the dream eater link system as an example. In DDD, as you fight alongside your dream eaters, you fill up a little gauge next to their portrait. (Image from khwiki)
when the gauge is full, and if you're playing as Sora, you will do a team attack with that dream eater, kinda akin to the limit attacks from 2.
However, for Riku, this is different. Riku straight up fuses with his dream eaters which gives boosts and bonuses to his attacks. He can do this, because at this point he's become a dream eater himself, and thus his interactions with them are different. It's a little gameplay detail that gives a little 'oh' moment when looking back.
Sora is not a dream eater and thus interacts with them in a different way.
Though that does beg the question. If Riku is a dream eater, and Sora's dream eater specifically, shouldn't they have a link attack together?
Well...
I would argue that they do.







