Undertale Mettaton NEO stands as a gleaming chrome figure with a statuesque silhouette. The torso panels mirror polished metal, each edge crisp and inset with teal and magenta accent lines that catch the light. The head is a stylized display unit, with a wide, friendly mouth-like LED grin and piercing eyes that glow when animated. The arms articulate at the shoulders and elbows, revealing jointed mechanics and subtle engravings. The chest features a central, heart-shaped core lit in pink, flanked by scalable panels that gleam under stage lighting. The figure rests on a stable base, with optional flight-like attachments that resemble Mettaton’s stage apparatus. Paint applications are clean, with precise shading and metallic luster throughout.

Mettaton, originally built as a charismatic television host by the underground's eccentric scientists, captivates the audience with dazzling performances and flawless style. In the NEO incarnation, he evolves beyond mere entertainment into a display of power and theatrical strategy, challenging heroes with a blend of charm, gadgets, and dazzling energy attacks. His stage becomes a battlefield where showmanship meets resolve, forcing players to navigate spectacle and danger alike. Across Undertale's storyline, Mettaton’s motive balances vanity and genuine concern for his audience, and NEO's upgrade intensifies that dynamic, weaving themes of identity, fame, and the cost of perfection into every encounter.