Daniel "Dan" Kuso anchors the narrative across multiple *Bakugan* arcs, prominently in *Mechtanium Surge*. Beginning in Wardington before relocating to Bayview and Bakugan City, he forges an unbreakable bond with Drago, a Pyrus Dragonoid whose evolution into forms like Fusion Dragonoid strains their partnership. Code Eve’s infusion of chaotic energy into Drago triggers catastrophic events, including the accidental unleashing of Mechtogan Zenthon. This forces Dan into temporary retirement for intensive retraining in New Vestroia to stabilize Drago’s powers and mend their fractured trust. His journey traces a shift from brash impulsiveness to tempered leadership. Early recklessness—exemplified by hurling Drago into a river after battle losses—gives way to tactical discipline honed through defeats against adversaries like Ryo and guidance from allies such as Spectra Phantom. Though matured, Dan occasionally mirrors flaws he condemns in others, chastising teammates for decisions he later repeats. In *Mechtanium Surge*, Dan confronts Mag Mel and Wiseman amid Bakugan Interspace’s collapse and Chaos Bakugan invasions. He masters dual Pyrus-Haos attributes in Arc 2, allies with former rivals like Spectra, and deploys Mechtogan Titans and Battle Suits like the Doomtronic armor against escalating threats. Interpersonal dynamics shape his growth: contentious exchanges with Runo Misaki evolve into mutual respect, though unresolved tension lingers. His insistence on redeeming foes like Masquerade and Ren Krawler underscores a steadfast belief in second chances, yet his stubbornness sparks friction with allies such as Marucho and Shun during strategic disputes. Visual redesigns mirror his progression. *Mechtanium Surge* outfits him in a crimson jacket with a high black collar, dark jeans, and tactical goggles, while training sequences feature athletic gear with red accents. These shifts underscore his transition from fiery prodigy to a seasoned protector of Bakugan City, mediating conflicts between species and wielding hard-earned wisdom.