UOSaDU

Utopian Operating System and Defense Unit (Also known as UOSaDU) is a main protagonist and a recurring playable character who has so far appeared in Downfall FES, Downfall FES Re:Boot, and Downfall FES 2.

Appearance
In Downfall FES, UOSaDU wears a blue and white unzipped jacket with blue and white short sleeves over a black undershirt. He also wears blue jeans with a blue and white belt with a silver belt buckle.

In Downfall FES Re:Boot, UOSaDU's jacket is now entirely blue with black rolled up sleeves. The rest of his outfit in this game is the same as it was in Downfall FES.

Personality
UOSaDU is a very serious and stoic android who will do anything and everything to keep Amadeous safe.

History
Unlike the rest of the cast, UOSaDU was not born in the same way- UOSaDU was built by Amadeous as a companion and a training partner. UOSaDU was temporarily shutdown when Septemus began his second attack on the tower at the same time Amadeous was put into stasis. UOSaDU is the first ally the player gets in FES and FES Re:Boot.