This document discusses different graphical styles used in video games including photorealistic, cel shaded, and exaggerated styles. It focuses on photorealism and cel shading, explaining that photorealism aims to make games look as realistic as possible by including details like scars, blood, and hair. Cel shading, on the other hand, makes 3D models look like hand drawn artwork to give games like Mario, Zelda, and Dragon Ball Z a stylized, non-realistic look. The document provides examples of games using each style and notes that while photorealism enhances realism, it requires more disk space.