Liam Edwards Ellis developed main menu UI improvements for the Afronomical/CoolGuyHazardShooter repository, focusing on input reliability and user experience. He decoupled the UIManager from the singleton InputHandler by introducing an external handler, which allowed for cleaner code structure and easier testing. Using C++ and leveraging his skills in game and UI development, Liam implemented responsive navigation for the main menu, supporting UP, DOWN, and RETURN actions. He also integrated a new font asset to enhance visual clarity and addressed underlying UI manager errors, resulting in a more stable input flow and laying a foundation for future UI enhancements.