This is a sub-category for chatracters and hardware that are robots.
“The Mark 19 was a robot suit developed by Riff. Riff used the Mark 19 with Zoë to battle Oasis...Mark 19
“The Mark I is Riff's first robot.  Riff designed the Mark I to do his laundry, but included...Mark I
“The Super Robot Mark 2 was created by Riff from the remains of the Mark I. The Mark II was...Mark II
“The Robot Mark 5 was created by Riff specifically to fight K'Z'K. The Mark V was armored in...Mark V