Ozon B manifests as a hulking, stitched-together corpse reminiscent of Frankenstein's creation, distinguished by an oversized purple head secured by protruding bolts that permit 180-degree rotation. The cranial cavity hides a live cat that peers out during moments of surprise or heightened excitement. Its limbs and appendages detach and reattach at will, frequently unsettling peers, particularly Kuguru, who repeatedly spots the concealed feline but fails to convince others of its presence.

After centuries buried beneath Aibo Academy, the creature resurfaces as a self-styled master analyst during high-stakes Buddyfights, barking play-by-play commentary steeped in professed encyclopedic knowledge of the game’s lore and mechanics. Though declaring himself impervious to astonishment, his sputtering reactions to unconventional tactics—particularly those involving Sun Dragon cards—regularly betray this boast.

Ozon B serves dual narrative functions as both strategic oracle and comic relief, delivering tactical observations punctuated by his signature catchphrase "Zon-B!" A running gag pits his oblivious showmanship against Kuguru’s horrified reactions, her shrieks of disgust fueling their asymmetrical rapport. When confronting champion Gao Mikado in tournament finals, he showcases his trademark resilience by exploiting a Buddy Monster’s ability to resurrect endlessly from the discard pile, embodying his philosophy of relentless tactical endurance.

The name Ozon-B twists "zombie" into a pun reflecting its undead physiology. Its personality blends undead swagger with scholarly pretensions, though inflated claims of omniscience crumble whenever novel strategies disrupt his predictions. This duality creates a cycle of pompous declarations followed by flustered corrections that drive both plot progression and slapstick humor.