Fixed a bug where the character's completion difficulty level was not recorded after quitting and restarting mid-game. Increased the trigger range of the bouncing grenade. Improved the rate of fire and range of the speed controller. Enhanced the damage and range of Russian semi-automatic rifles of purple rarity and above. Reduced the aiming time of sniper rifles and increased their range. Reduced the visual effects of plants and characters competing for air and water, alleviating optimization pressure. Strengthened the backflip monkey, which now respawns directly among enemies after performing a backflip.