Meaning – Friendship is inherently meaningful: it is worth laying one’s life on the line, and fighting, for.
Death – Individuals can be sent to the Shadow Realm, usually after losing a Duel. In the original dub, these players are killed (reversibly).
Anxiety – Any Duel can be marked by increased anxiety. The higher the stakes, the greater the anxiety!
Isolation – Players who are sent to the Shadow Realm must try to learn how to live by themselves, usually in a state of never-ending torture…rarely, the heroic protagonist must fight the final boss for himself*!
Freedom – Duelists fight to free their friends–and, ultimately, the world–from the Shadow Realm.
*Perhaps someday, herself?