The document provides details on the planning and design of a 2D sidescrolling game. It will have a dark, detective-style theme set across multiple levels in different locations. The player controls a main character who uses a bow and progresses by finding clues, fighting enemies, and completing platforming challenges in each level. Upon finding enough clues, the player advances to the next area and learns more about the story. The objective is to stop a group of criminals by reaching their base. The document outlines plans for character designs, level layouts, gameplay mechanics, and how the story and clues will guide the player through each level.