It is the only member to not have a silhouette before it is revealed.
However, it did have a silhouette when it first clashed with "Clear Wing" in episode 18. According to director Katsuni Ono, this scene was intended to take place before "Dark Rebellion" physically debuted in episode 7
As an Xyz Monster, it is the only member that does not possess a Level.
It is the only member to have only one effect. (As a Pendulum Monster, "Odd-Eyes" has both a Pendulum Effect (two in the TCG/OCG) and a monster effect.) It can, however, use its effect twice per turn (only in the anime though).
So far, it is the only member to appear in both the anime and the manga, as the rest are replaced by their manga counterparts.
*Disclosure: Some of the links above are affiliate links, meaning, at no additional cost to you, Fandom will earn a commission if you click through and make a purchase. Community content is available under CC-BY-SA
unless otherwise noted.