The Dark Mod and its respective weapons for the Morph Gun. Its color consists of purple and it seems like there is a amount of Dark Eco used to power the gun due to color and the damage it causes to its target. As the Dark Eco is a destructive eco, the Dark Mod's weapons have a giant destructive force, and normally kills enemies with just one shot (except from the mass inverter).
The Peace Maker is a lethal weapon that fires electrically charged particles using Dark Eco to enhance its destructive firepower, and is the most powerful gun Jak obtains in Jak II. If multiple enemies are within range, the electricity will arc and separate, targeting all in its path. The energy shot will also hone in on a target. To boot, the gun has a laser sight. You can charge the shot but that just saves the shot, however this appears to be purely aesthetics, as doing so provides no bonus in damage. The gun has an odd feature on top of the barrel in that it seems to have a mounted Metal Head skull. Sig's Peace Maker has an elongated barrel and the same Metal Head skull.
Holding a charge with the Peace Maker, Jak can walk into a pool of water and swim while holding the charge. The Peace Maker is the only Mod that will allow this. While holding the charge you can press the first person button (R3) you can aim anywhere and when you release the fire button, it will fire in the direction you are aiming.
The Mass Inverter unleashes radiating waves of energy. Creating an anti-gravity field around Jak that will cause other characters, enemies, and objects to float up helplessly in the air. While it does not harm victims until they fall, it leaves them vulnerable to attack by Jak.
The Super Nova releases a miniaturized nuclear bomb that will destroy everything that is destructible, not just on the screen but everything within a large radius around you. It normally uses 10 ammo but with upgrades it only chews up 8 ammo.