I didn't really play Days and started watching a playthrough on youtube, but in that cutscene I think Riku takes Xion's keyblade in his own hand, examines it and then throws it away saying it's a sham.
The question is then: Is Riku that familiar with keyblades that he can differentiate between a copy and a real one?
The question is then: Is Riku that familiar with keyblades that he can differentiate between a copy and a real one?