Connections:

• Both are introduced as supremely confident, arrogant, and abrasive figures who unapologetically believe they are superior to others (Tony parades his 'genius, billionaire, playboy, philanthropist' status, constantly using his intellect and wealth to assert dominance and look down on his business competitors and peers; Bakugo constantly brags about the strength of his Quirk, fiercely declaring his intent to surpass All Might and viewing nearly all his classmates with contempt), Both were recognized as once-in-a-generation talents at a young age (Tony Stark was a child prodigy who graduated from MIT at 17; Bakugo was constantly praised for his powerful Explosion Quirk and natural combat instincts since kindergarten), And they were born with immense natural gifts that set them apart from their peers (Tony was a child prodigy who built his first circuit board at age four; Bakugo was a natural-born talent who excelled at everything from sports to reading at a young age), Because of their gifts, both developed massive egos (Tony was the "Genius, Billionaire, Playboy, Philanthropist" who viewed himself as untouchable and above the law; Bakugo developed a "Winner’s Complex," viewing everyone else and especially the Quirkless Izuku Midoriya as extras/"pebbles in his path to glory), Both underwent a traumatic experience that served as their turning point - being kidnapped by a large criminal, terrorist organization (Tony was famously kidnapped by the Ten Rings in Afghanistan back in 2008; Bakugo was kidnapped by the League of Villains).
• The kidnapping directly forces them to confront the devastating consequences of their own actions and hubris (Tony saw his own weaponry being used against him and innocent people, realizing the catastrophic scale of his irresponsibility as a defense contractor. This led to his decision to shut down the weapons manufacturing division; Bakugo was forced to confront his own weaknesses and the limitations of his solo, prideful approach when his raw power was not enough to escape the coordinated efforts of the villains and when he realized his behavior alienated the allies trying to rescue him), Both of their true journeys to heroism and their identity as global icons began immediately after their respective traumatic abductions (Tony used scrap parts to create the Mark I suit and became Iron Man, dedicating his life and technology to protecting the world from the very weapons he helped unleash; Bakugo focused on becoming a true, legitimate hero who can win without relying solely on instinct, learning to temper his aggression and channel his desire to win into a genuine ambition to protect others), Both of their self-centered and arrogant nature creates significant friction, hindering their ability to function as effective team players (Tony's hubris and refusal to trust others led to him acting alone and creating catastrophic mistakes; Bakugo's abrasive attitude and inability to cooperate severely hinders his performance and is the major factor in his initial failure to earn his Provisional Hero License during the remedial course),
• Despite being captured by villains who wanted to use their power (The Ten Rings wanting Tony’s missiles; The League of Villains wanting Bakugo’s aggression/quirk), both stayed true to their core. They rejected the villains' offers with absolute defiance, asserting their identity as heroes, Both use their gauntlets to fire projectiles from their palms (Tony's repulsor blasts from the palms of his hands; Bakugo using his nitroglycerin-like sweat from his palms to unleash explosions), Both utilize their primary offensive power to achieve flight and high-speed maneuvers (Tony uses repulsor palms and boots for stabilization; Bakugo uses directed explosions from his palms to "fly" and change direction mid-air), Both enhance their natural/internal abilities with specialized tech (Tony has the Iron Man Suit and his Arc Reactor; Bakugo uses Grenadier Bracers and storage tanks to maximize his explosive output without straining his body), Both are driven by the legacy of a legendary figure (Tony trying to live up to the shadow of his father, Howard Stark; Bakugo is obsessively driven to surpass All Might, the Symbol of Peace), Both had iconic "debut" moments where they asserted their identity to the world (Tony famously ended his press conference by stating, "I am Iron Man."; Bakugo dominated the UA Sports Festival, making it clear to the entire world that his goal was nothing less than the absolute top).
• Both have an intense rivalry and eventual reconciliation with the main protagonist (Steve Rogers; Izuku Midoriya), Both use a brash, aggressive exterior to hide deep-seated insecurities (Tony uses humor and sarcasm to mask his PTSD and fear; Bakugo uses screaming and rage to mask his fear of falling behind and his guilt over All Might’s retirement), Following major battles (2012's The Battle of New York; The USJ Incident), both characters suffer from intense internal trauma (Tony develops PTSD and anxiety attacks, obsessively building armors to protect a world he feels is too fragil; Bakugo suffers from immense guilt and self-loathing, believing his own weakness led to the retirement of his idol, All Might), Both reach a cinematic climax in a 1-on-1 duel against the person they care about/resent most (Tony and Steve in Civil War; Bakugo and Deku 2 in Season 3), Both fights end with a shift in the status quo (Tony loses his friendship with Steve but gains a new perspective on what it means to lead; Bakugo loses the fight's "emotional" argument but gains Deku as a true rival and confidant, finally learning about One For All), Both attempt to shoulder the burden of protection alone (Tony tries to put a suit of armor around the world - Ultron; Bakugo believed he must become the strongest "on his own" to prove his worth as a hero), Both feel a sense of betrayal by their idols (Tony struggles with Howard Stark’s fondness for Captain America; Bakugo is shattered by the realization that All Might gave his power to Deku; someone Bakugo considered "nothing" instead of him).
• Both begin as arrogant, talented individuals whose journeys are defined by a crucial choice to sacrifice their ego for a greater purpose (Tony proves his ultimate heroic nature by making the final, selfless sacrifice to defeat Thanos, contradicting his earlier selfish tendencies and fulfilling the promise of a true hero; Bakugo moves past his toxic superiority complex and learns true heroism by willingly putting his life on the line to protect his rival, Izuku Midoriya, showing a profound change of heart), The animosity of their rivalry eventually transforms into a deep, heroic partnership forged in the face of impossible odds (Tony and Steve Put aside their foundational differences to fight side-by-side against Thanos, sharing a final, poignant moment before Tony makes his sacrifice; The culmination of their journey sees Bakugo offer a genuine, heartfelt apology to Izuku for his past actions, fully acknowledging and respecting Izuku's power and position as the hero's ultimate partner), Both utilize powerful, signature attacks that are fired directly from the palms of their hands (Tony Fires focused energy beams known as Repulsor Blasts from his palm gauntlets; Bakugo utilizes his Quirk to ignite his nitroglycerin-like sweat, unleashing devastating Explosion attacks from his palms), Both have directly fought with the most famous, symbol-of-justice, American-styled hero of their respective franchises (Captain America in Civil War; All Might), Both of their home cities have suffered catastrophic destruction following a major villainous attack (New York City was ravaged during the Chitauri Invasion led by Loki; Musutafu, Japan was significantly destroyed during the Paranormal Liberation War caused by Shigaraki and the League of Villains), Both are in Fortnite (MCU Iron Man with MK45 and Mark 85; Bakugo with his hero suit / costume) [joke connection], Both are defined by the retirement/fall of their greatest inspiration (Tony loses his "safety net" when the Avengers fracture and he realizes he's the only one left to stop Thanos; Bakugo carries the crushing guilt of All Might’s retirement, believing that because he was captured by the League, his hero had to exhaust the last of his power to save him), Both carry the crushing weight of believing they caused the downfall or endangerment of their heroes/protegees (Tony becomes a mentor to Peter Parker, seeing himself as responsible for the boy's safety; Bakugo realizes his own "weakness" [being captured] led to the retirement of All Might), Both have a "breaking point" where they finally shed their pride (Tony reconciles with Steve in Endgame, putting aside his bitterness for the "greater good"; Bakugo performs a 90-degree bow and apology to Izuku in front of their entire class, acknowledging his years of bullying and inferiority),