During March 2025, Rennes contributed to the Styxou/EVC_test repository by delivering a new gameplay feature and addressing a core reliability issue. Rennes implemented changes to SkillCheckpoint interactions and updated the TagManager to introduce new tags, enabling more precise gameplay analytics and interaction handling. Using Unity and C#, Rennes also improved the grappling system by constraining raycasts to a specific layer and refining grapple point logic, which reduced edge-case failures and ensured consistent player experience. These updates enhanced gameplay stability and maintainability, demonstrating a thoughtful approach to both feature development and bug resolution within a game development context.