Developed and delivered an interactive Coin Flip Game feature for the jonbertelsen/lifehackspring2025 repository, focusing on enhancing user engagement and retention. The implementation combined HTML for the user interface, CSS for responsive and accessible styling, and JavaScript for the core flip logic, result display, and streak tracking functionality. This cohesive front-end solution provided a lightweight, engaging experience without introducing major bugs. The work demonstrated proficiency in front-end development, integrating new features seamlessly into the existing codebase. Over the course of the month, the developer concentrated on building out this feature, emphasizing maintainable code and a smooth, user-friendly experience throughout.