Board Thread:Questions and Answers/@comment-45660847-20200501213552/@comment-39189388-20200911132216

There's nothing different about the arrows, but it depends on the circumstances of the piercing. Giorno willingly pierced his stand while he had the will to become more powerful and to win. With Kira, the arrow chose to move on its own and it pierced Kira himself, not KQ.