Worked on collision detection robustness in the SuperTux/supertux repository, focusing on resolving a critical player-enemy interaction issue. Addressed a bug where the player character could not properly interact with frozen, bouncing enemies, which previously caused the character to become stuck in a falling animation. Improved the collision logic by introducing additional verification steps and refactored the code to consolidate shared logic into a dedicated helper function, reducing duplication between collision paths. Utilized C++ for all changes, applying game development and collision detection expertise to enhance gameplay reliability. The work emphasized maintainability and correctness in the game’s core mechanics.