Morph Gun upgrades could be earned for the Morph Gun in Jak II and Jak 3. In the former, they were earned after completing missions for Krew. In the latter, they were unlocked from the Secrets menu with Precursor orbs.
|Rate of fire upgrade||Scatter Gun||Doubles the rate of fire.||After "Collect money for Krew".|
|Ammo capacity upgrade||Scatter Gun, Blaster, and Vulcan Barrel||Doubles the ammo capacity.||Before "Rescue 3 lurkers for Brutter".|
|Damage upgrade||All weapons||Doubles the damage output.||Before "Beat Krew in weapons lab".|
|Increased Red Ammo Capacity||Scatter Gun, Wave Concussor, Plasmite RPG||Increases maximum ammo capacity by 50.||After "Defeat marauders in arena".||4|
|Increased Yellow Ammo Capacity||Blaster, Beam Reflexor, Gyro Burster||Increases maximum ammo capacity by 100.||After "Defeat marauders in arena".||4|
|Increased Blue Ammo Capacity||Vulcan Fury, Arc Wielder, Needle Lazer||Increases maximum ammo capacity by 100.||After "Defeat Veger's Precursor robot".||4|
|Increased Dark Ammo Capacity||Peace Maker, Mass Inverter, Super Nova||Increases maximum ammo capacity by 10.||After "Break barrier with blast bot".||4|
|Blaster Damage Upgrade||Blaster||Increases damage.||After "Earn 2nd war amulet".||6|
|Scatter Gun Rate-of-Fire Upgrade||Scatter Gun||Increases rate of fire.||After "Earn 2nd war amulet".||6|
|Vulcan Fury Damage Upgrade||Vulcan Fury||Increases damage.||After "Defeat marauders in arena".||6|
|Peace Maker Increased Radius||Peace Maker||Increases radius and damage dealt to vehicles.||After "Break barrier with blast bot".||6|
|Reflexor Increased Deflections||Beam Reflexor||Increases number of blast deflections.|| After "Defeat marauders in arena".|
Purchase Blaster Damage Upgrade.
|Concussor Damage Upgrade||Wave Concussor||Increases damage and slightly reduces charge time.|| After "Defeat marauders in arena".|
Purchase Scatter Gun Rate-of-Fire Upgrade.
|Arc Wielder Robot Shock||Arc Wielder||Doubles damage against death bots.|| After "Defeat Veger's Precursor robot".|
Purchase Vulcan Fury Damage Upgrade.
|Mass Inverter Duration Upgrade||Mass Inverter||Increases duration and radius.|| After "Rescue Seem at temple"|
Purchase Peace Maker Increased Radius.
|Gyro Burster Duration Upgrade||Gyro Burster||Increases the drone's duration.|| After "Beat gun course 1".|
Purchase Reflexor Increased Deflections.
|Plasmite RPG Ammo Efficiency||Plasmite RPG||Decreases ammo consumption to 8 down from 10, and increases the rate of fire.|| After "Beat gun course 2".|
Purchase Concussor Damage Upgrade.
|Needle Lazer Ammo Efficiency||Needle Lazer||Decreases ammo consumption to 1.5 down from 2.|| After "Destroy eco grid with Jinx".|
Purchase Arc Wielder Robot Shock.
|Super Nova Ammo Efficiency||Super Nova||Decreases ammo consumption to 8 down from 10.|| After "Blow open tower door".|
Purchase Mass Inverter Duration Upgrade.
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