Yu-Gi-Oh! has undergone numerous changes between its manga and anime adaptations, primarily due to the vastly different focus of the anime compared to the manga. The card game Yu-Gi-Oh! began to gain recognition, meaning that the anime had to promote the game even more heavily, especially given the notorious popularity of Season 0, which feels quite different from the remaining parts.
10. Yugi is a “mood swing” character in the Yu-Gi-Oh! manga

In the Yu-Gi-Oh! anime, Yugi is depicted as a character with a pure heart, caught between light and darkness. The character is shown as someone who is easily intimidated and can only express his feelings to a girl.
However, in the Yu-Gi-Oh! manga, Yugi is portrayed more as a typical teenager experiencing “mood swings”. In the manga, he and Joey start sharing videos with each other, and Yugi is depicted having “mood swings” with Tea. In the anime, however, he seems to have little concern about gender issues. The manga, especially in Season 0, enjoys placing Yugi in challenging situations.
9. Yugi and Joey never actually duel in Duelist Kingdom

Yugi and Joey are best friends in the anime, always supporting and encouraging each other to move forward. These two characters have been shown to duel against each other a few times throughout the series, often as a means for Joey to showcase his growth without ever matching up against Yugi.
The Duelist Kingdom arc is a highlight of Yu-Gi-Oh! as a franchise, showcasing a significant shift and being one of the arcs with the most substantial differences between the anime and manga. In the manga, Joey struggles to overcome Yugi before he can duel against Pegasus. However, in the anime, audiences see the two characters duel, and Joey appears differently than expected. Yugi doesn’t seem to be concerned at all.
8. Yami Yugi begins as an evil spirit ready to kill

The origin of Yu-Gi-Oh! is a classic manga that has been somewhat forgotten in the string of card games aimed at children. The relationship between Yugi and Yami Yugi initially seems complex as Yami Yugi is depicted as a spirit that takes over and leads others into terrifying games. Although this is apparent in Season 0, this theme is quickly forgotten in the main storyline of the anime.
The manga delves much deeper. Yami Yugi is portrayed more ruthlessly in the manga, and the games he plays are much more severe. He made Kaiba experience death at the hands of a monster in a duel, causing destruction to someone who previously had a pristine reputation, and even goes so far as to cause a criminal to die due to their own shortcomings.
7. The first duel between Yugi and Kaiba doesn’t feature Exodia

The anime skips over many events to quickly jump into card games. The first duel between Kaiba and Yugi in the anime features the famous Exodia, where Yami Yugi uses “Mind Crush” to counter Kaiba’s evil plot into the Duelist Kingdom. This is a moment that symbolizes the franchise, establishing the stakes and introducing viewers to what they might expect in the coming decades of the series.
However, in the manga, the two actually meet in school, where Kaiba steals Yugi’s rare blue-eyed white dragon card. The duel doesn’t have the same dramatic stakes as in the anime; it unfolds more quietly, and Exodia doesn’t even appear.
6. Yugi relies much more on Yami Yugi in the Yu-Gi-Oh! anime

Yami Yugi and Yugi cannot be separated; not just because they share one body, but because they have a deep emotional connection. In the manga, Yami Yugi is a hidden part of Yugi that he is unaware of, and there is a valid reason for this state. Yami even doesn’t seem to act like a person in the manga, but rather as a force of nature. Yugi appears as though he doesn’t have many feelings about anything or anyone outside of winning.
However, in the anime, Yugi is portrayed as a much more innocent character, often understanding what is happening with Yami Yugi in general, and learning how to communicate with him for their mutual benefit. Both eventually grow close to an unbreakable bond, creating an emotional connection that is increasingly significant between them.
5. Yugi doesn’t mind when Yami Yugi takes control in the Yu-Gi-Oh! manga

In the early parts of the Yu-Gi-Oh! manga, Yugi is unaware when Yami Yugi takes over his body during the “duel” challenges. Yugi often feels confused about what happens when Yami Yugi takes control. He loses a bit of time adapting to his new surroundings, but he manages to adjust over time.
However, in the anime, this never truly happens. Yugi seems to never lose any time or awareness when Yami Yugi takes control, and they are both considered to be one entity for a significant amount of time. They interact much more than anyone ever expects.
4. Yugi knows Tea has feelings for Yami Yugi in the manga, but it’s not as clear in the anime

In the anime, Yugi’s feelings for Tea are explored more deeply, existing as a slight background element instead of the main focus. However, Yugi also doesn’t seem to take into account the dynamics between the two characters, as Tea clearly shows more interest in Yami Yugi and even longs for him when his spirit is at rest. Both even seem to go on a date that Yugi initially planned for Yami Yugi to participate, but he still appears to be more interested in it for both of them.
However, in the manga, this is addressed rather quickly right from the beginning of the Duelist Kingdom arc. Yugi fully acknowledges that Tea likes Yami Yugi more than him, even though Tea often insists that she likes both of them. The growing tension is never really addressed, nor does it become a significant part of the plot, as it never truly gets resolved and Yami Yugi often seems disinterested.
3. Bandit Keith never actually duels Yugi in the manga

In Battle City, there’s a fantastic scene where Yugi must rebuild his deck after Bandit Keith steals it. This also occurs while he is trapped in a burning building. This scene is quite memorable, emphasizing the connection between Yugi and Yami Yugi as well as the significant dynamics of the friendship between all of them as they duel to survive together. This is a fantastic way to showcase the stakes of the arc.
However, this never actually happens in the manga, as at this point, Bandit Keith is already dead. Pegasus had previously forced him to commit suicide by transforming him into a monster, and his hot-headedness had led him to defeat himself in the duel. Many characters end up not surviving through the Duelist Kingdom arc, including Pegasus himself. The manga is undoubtedly much darker and has a higher body count than the anime.
2. Yugi is the only one who can resonate with Atem in the Yu-Gi-Oh! manga

The Yu-Gi-Oh! anime has many arcs and filler episodes, eventually changing the tone and significance of many moments. Yami Yugi, or Atem, is portrayed as a character that stands out in battles due to his strength and the strategic capabilities of the characters in the card game. However, the failures of the characters only come from cheating or when Yugi regains control to prevent Yami Yugi from doing anything too decisive. This is an important narrative point, as only by accepting failure can Atem reach the other side.
The anime completely overlooks this point due to the need for filler and dramatic tension. The Waking the Dragons arc, involving Orichalcos and Atlantis, saw Yami Yugi lose to Raphael and ultimately lose Yugi’s spirit, causing him to fall into a spiral. Although it is very emotionally charged, it immediately leads to the series needing to conclude. Yami uses this arc to express his feelings for Yugi when he tries to bring him back, but the damage has already been done.
1. Yugi’s grandfather appears in the Yu-Gi-Oh! manga

In the anime, like most main characters, Yugi seems to lack a father. The only adult figure in his life is his grandfather, and there seems to be no reference to a father figure throughout the series. This is quite typical and shouldn’t raise many questions for most anime viewers, as this is not uncommon in shonen anime. Yugi’s grandfather often serves as a supportive character throughout Yugi’s life, sometimes being a bit overprotective or getting into trouble a few times throughout the series – but he is not the only adult figure in Yugi’s life in the manga.
In reality, Yugi’s mother also plays a significant role in his life. She is a positive influence in his life when he is young, and everyone else also seems to regard her kindly. There are many differences between Yugi’s anime version and the manga, but having a mother beside him is one of the biggest changes, as it completely transforms the family dynamic of the character. The presence of a mother in the manga often raises questions about how her presence may impact the narrative, but her character has already disappeared.
Source: CBR