Helen Wang contributed to the Pixel Plumbers project by developing and refining core gameplay features and addressing critical bugs across two repositories. She enhanced sprite animation and texture management, notably integrating Luigi textures and stabilizing character visuals using C# and MonoGame. Her work included refactoring the Game1 module for improved code structure, optimizing entity filtering for performance, and implementing camera and level navigation fixes. Helen also introduced code metrics instrumentation to increase codebase visibility and maintainability. Through systematic code review, debugging, and documentation, she ensured the project’s build process and version control workflows remained robust and adaptable for future development.