Worked on maintenance and regression management for the Rain-Meadow repository, focusing on codebase stability rather than new feature development. Addressed a bug by reverting a previous fix for batfly duplication, which involved removing logic related to AbstractCreature.IsEnteringDen and reintroducing the original issue to align with QA expectations. Documented the regression thoroughly and initiated a plan for a more robust, targeted fix in the next development cycle. Utilized C# for code changes, applied Git version control for precise traceability, and collaborated across teams to ensure clear communication and planning for future regression testing and codebase improvements in game development.