○ Improvements - Changed the Optimization feature to be able to be turned On/Off. ※ When game performance optimization is applied, the movement of biodoll at a distance may not move smoothly. ○ Bug Fixes - Fixed the issue where melee attacks (knife) sometimes did not work - Fixed the issue where the "Emergency Power" extra option did not apply to Revivers ※ We are still having trouble reproducing the Sentinel Invincibility bug, so we are having trouble fixing it. If you could report a video of the Sentinel Invincibility bug, it would be a great help in quickly fixing the game. We apologize for not making your gameplay more enjoyable.