The E-2000R is a gold-colored variant of the regular E-2000, with extra armor and health. It only appears in Sonic Heroes, in the level Final Fortress for all teams except Team Rose. It also appears in Egg Fleet in Super Hard Mode.
Having the same body model as E-2000, E-2000R is another model of E-2000. Its yellow parts are switched with the red parts from E-2000, and the red parts on this body type have been switched with the yellow parts on E-2000. It is much stronger than E-2000, possessing thirty HP.