[list] [*] Extended the lifetime of plasma projectiles after they bounce off surfaces. [*] Changed music for Arena Mode. [*] Fixed an issue where player could talk with non-existent entity in the Cyonpolis Arena. [*] Fixed a bug that erroneously awarded achievements for completing a level if the player died simultaneously with the last NPC. [*] Fixed a graphical glitch involving a solitary white pixel visible in a single frame of the NPC soldier's gunpowder pistol animation sequence. [*] Optimized audio effect file loading to occur in the background, enhancing performance on lower-end machines. [/list]