A dynamic and retro-style illustrative poster blending 1980s Japanese Gekiga manga and classic American comic book aesthetics. Central Hero: A powerful superhero representing the "Anti-Monopoly Engineer," clad in a heroic armored suit inspired by the American flag (Stars and Stripes). The suit features bold red and white stripes on the limbs and a blue chest plate adorned with white stars. He wears a classic winged superhero cowl. He is delivering a devastating, glowing punch labeled in large, stylized katakana as "セルラー" (Cellular). In his other hand, he brandishes a massive, brick-like 1973 prototype mobile phone with a long antenna as his iconic weapon. The Enemy: A multi-headed mechanical black dragon representing "AT&T Monopoly," with metallic scales engraved with "AT&T" and "独占" (Monopoly). The dragon's heads are crumbling and exploding from the impact of the hero's punch. Panicked executives in top hats are tumbling from its back. The Background: A cityscape featuring a looming dark skyscraper labeled "Fortress of Monopoly." At the bottom, a crowd of cheerful "Common People" (庶民) cheer for the hero, holding signs that read "WE WANT CHEAP RATES" and "安定したサービスを！" (We want stable service!). Art Style: Heavy ink outlines, intense speed lines, and halftone dot patterns. The colors are vibrant but have a slightly aged, vintage comic book texture. Onomatopoeia bubbles like "BOOM!" and "CRASH!" are scattered around the action.