The Fambaa Shield Generator is the Gungan unique unit, available at the Fortress in Tech Level 3. It is a mobile Shield Generator, providing an extra layer of hit points to all units within its range. Unlike the regular Shield Generator, it powers itself, so it does not need a Power Core in order to work. Note that the Fambaa Shield Generator does not have an attack.
In appearance, it is essentially a compact Shield Generator mounted on top of a Fambaa. The Fambaa Shield Generator is not the only Fambaa Gungan unit, however, as the Gungan Assault Mech is a Booma Cannon mounted on a Fambaa.
Unlike most units in the game, the Fambaa Shield Generator costs Ore.
In Tech Level 4, it can be upgraded to the Hvy Fambaa Shield Generator, which has more hit points, armor, and pierce armor.
"This Tech Level 3 unit — and its Tech Level 4 enhancement — generates a mobile shield that emanates in a fairly wide radius, protecting all Gungan units standing within its confines. The Heavy Fambaa Shield Generator gains an even stronger defence. Fambaa Shield Generators are specifically designed for defensive purposes, and carry no weapons of their own."
- The Fambaa Shield Generator is the only unique unit in the game that is neither classified as a Trooper or an Aircraft.