During July 2025, Killar focused on improving the stability of the amblelabs/ait game project by addressing a critical crash in TARDIS mode related to the Sonic item. Using Java and applying game development best practices, Killar identified a NullPointerException caused by missing null checks on the TARDIS object. By introducing a targeted null check before property access, Killar prevented the crash scenario and enhanced overall gameplay reliability. The solution was validated through regression testing to ensure the issue was fully resolved. While no new features were added, the work demonstrated careful attention to code quality and user experience in Java development.