I count 5 games Cloud was in: Chain of Memories, re:Coded, both Theterythms, and the upcoming Final Fantasy Monster Hunter-ish game. I don't remember if he was in 358/2 Days.
Also did anyone else notice that Cloud's normals are mostly Ike's? Same for Final Smash too. Kind of seems like he's somewhat a clone character like Captain/Ganadorf Marth/Roy, etc.
I don't think they're that similar at all. I mean, obviously Omnislash is like Great Aether, but there are already a bunch of FSes like that. There are a handful of moves that are like Ike's, like down air and what I believe were neutral air and forward air (more on that in a bit). But everything else is completely different.
Before you bring up Climhazard, a lot of people assumed it's like Aether and Final Cutter in that it brings down the opponent after the initial hit. But look at the footage again. That part of the move only happens once. The other times Cloud only attacks upwards. So the downward part seems to be optional, like the second hit of Shulk's Up B.
Gamexplain just did a theory analysis of his moves. There you can go down the list and see. However, I disagree with a couple of their points. I don't believe Braver is a special move. I think it's his forward air. And the move in the air where he spins the Buster Sword around is his neutral air. As for what his fourth B move would be, I believe his Limit Break deal is a special move that temporarily buffs his other specials, kinda like Deep Breathing and Lightweight.