http://www.crowndiamond.org/cd/sephiroth.html
Just off the top of my head, I recognize 2 final fantasy games, xenogears, xenosaga, wild arms 3, Evangelion (Anime, videogame, whatever) and countless others I've forgotten.
How many more RPG's can you find borrowing terms, phrases, or story reference from just this one page (Meaning just this one webpage as it stands, not all it's borrowed references, etc...)