*Anna Kaboom, known as Anna Kozuki (神月こうづきアンナ, Kōzuki Anna) in the Japanese, French and Italian versions, is a character that appears in the Yu-Gi-Oh! ZEXAL anime.

Anna has red hair, styled in a manner similar to Jaden Yuki's, but with longer hair. Her usual attire is a pink and white shirt, which reaches below her waist, black compression shorts and a pair of boots in the same colors as her shirt. During the World Duel Carnival Finals, she initially wore a brown cloak over this outfit to hide her identity.

When she participated in the Couples Duel tournament, she stole and wore Tori's school uniform along with her brown shoes and socks. After the ceremonial Duel between Yuma and Astral, Anna was seen wearing her own first-year student Heartland Academy uniform. In the dub, her skirt was lengthened.

When speaking in the Japanese version, Anna uses "ore" (俺) when referring to herself (supporting her tough girl attitude), a pronoun that is predominantly used by males and very seldom used by females (who are most likely tomboys in nature). Anna is also shown to be quite hotheaded and reckless, often rushing into things without thinking the situation through.

Astral calls her Dueling style very reckless (using up her entire hand in the second turn) but also very calculated (being able to push her opponent in a corner in only the third turn), which coincides with her personality.

Anna has also displayed a degree of selfishness, seen when she had difficulty working together with Yuma Tsukumo during the Couples Duel tournament, using his monsters to bring out her own (using his "Gogogo Golem" to Xyz Summon her ace card, as well as Tributing his "Gauntlet Launcher" with "Upgrade" to revive the aforementioned card). She was able to put aside her pride at the end of the Duel and activate "Devoted Love", knowing it would cause her to lose but give Yuma an opportunity for victory.*