.Oathkeeper. said:
I noticed it my second time beating the game. It made me wonder--where did Riku get Soul Eater in the first place? He used it when he and Sora meet up for the first time in Traverse Town.
My guess is that Ansem uses Soul Eater and gave Riku a variation of it when he brought him over to darkness (or possibly Maleficent), not the other way around.
Or maybe this could be symbolism at the fact that a shadow of Ansem still haunts Riku, and also that Ansem can never be free of the body he once possessed, like it was said in Chain of Memories, and thus uses the same weapon.
*shrug*
[/rant]