Aleshka Korolkov enhanced the TPIK system in the BurgerLUA/ARC-9 repository by delivering a feature upgrade focused on arm inverse kinematics. Using Lua scripting and 3D math, Aleshka improved the visual fidelity of character arms by enabling selective bone exclusion from IK solving and introducing helper utilities for bone manipulation. The engineering approach emphasized both performance and maintainability, optimizing the Solve2PartIK pathway for faster IK calculations and simplifying code structure. Inline documentation and code comments were updated to support future contributors. This work demonstrated depth in 3D animation and game development, addressing both immediate functionality and long-term code quality.