Worked on the ArchipelagoMW/Archipelago repository to deliver the Unlockable Paintings with Progress-Based Access feature for Super Mario 64, enabling item-based painting passability and expanding progression mechanics. Applied Python and object-oriented programming to update data models, game options, and region connectivity, ensuring that painting access rules are enforced based on player progress. Focused on a maintainable, data-driven design that integrates new item data and entry requirements, resulting in more meaningful player choices and consistent gameplay across regions. No major bugs were reported during this period, reflecting a thorough approach to feature delivery and end-to-end consistency in software design.