Yusei's hairstyle was based on Takahashi's own bedhead, and completes a "rock, paper, scissors" theme shared with Yugi Muto and Jaden Yuki
(Chuckle as your opponents try to cast Fog in 2019 when you have eight maindeck ways to incidentally counter it.) Bonecrusher Giant, Wild Slash, Lightning Strike, and Wizards Lightning offer a ton of reach for red aggro decks, and allow you to maintain pressure while cheaply removing opponents threats
And while this is a feature common to all the Yu-Gi-Oh
Several characters accuse Yuya of cheating using illegal cards, relying on an unfair advantage that other duelists don't understand the mechanics of, and/or take an interest in him and his Pendulum Monsters because they're so strong
Norman Osborn / Green Goblin By itself, Norman Osborn is a 1/1 unblockable creature that connives, which means it gets stronger as time goes by, while discarding key cards to use later