- Refactored inventory, quest, and crafting backend systems, improving extensibility and resolving serialization issues with the save system
- Implemented combat variants including tag team, pin mechanics with animations, package match, and meltdown win conditions.
- Built world map travel systems including ferry dock transitions between continents and a spaceship with warp and interior navigation.
- Created a bridge system supporting overworld units walking both under and over bridges at multiple depth layers, replacing a problematic existing implementation.
- Developed a stealth mechanic with NPC flashlight detection, requiring players to avoid light cones in specific areas.
- Implemented a data validator tool that runs on game load to automatically correct progression blockers, achievement issues, and unlock states.
- Built a generic UI navigation framework supporting vertical, horizontal, grid, and custom layouts — adopted across multiple game contexts.
- Created puzzle mechanics including an escort protection puzzle spanning multiple scenes and an RC vehicle puzzle with proximity-based player tracking.
- Developed a shooting mechanism for projectile-based obstacles that correctly ignores intermediate colliders based on 3D spatial position.
-Implemented footstep VFX spawning on snow and sand surfaces, enabled and disabled dynamically as the character moves across surface types using object pooling.
- Implemented a skip area system for the world map, allowing players to bypass sections they had already completed.
- Corrected conveyor belt velocity application from a position-based to a purely velocity-based solution, fixing FPS-dependent inconsistency.
- Collaborated with console and mobile porting teams, tracking commits, managing branch conflicts with P4merge, and resolving platform-specific issues.
- Conducted code reviews and provided architectural guidance, mentoring junior developers throughout the project.