The Vulcan Fury, also known as the Vulcan Barrel, is a medium-range, rapid-fire, machine gun-like weapon, and the first weapon obtained for the blue mod. It works well in large groups of enemies, or enemies which take a particularly large number of shots to kill such as the juice goon and sling blaster. Similar to the yellow mod, the blue mod comes equipped with a laser sight for better precision. While the blue mod prevails in rapidity, it lacks in ammo consumption efficiency, although this can be upgraded in Jak 3 through the secrets menu.
The Arc Wielder emits a thick, continuous stream of electricity, inducing electric shock into whatever or whoever it is passed through. Much like the Vulcan Barrel, it consumes ammo rather quick until upgraded. It can also be upgraded with the "robot shock" upgrade which increases the amount of shock into KG Death Bots.
The Needle Lazer emits small spurts of heat-seeking blue eco bolts that can track down enemies within a short range. It is most effective against fast and flying enemies. It also consumes ammo quickly until upgraded via the secrets menu.