Rotor Walrus is a main protagonist in Re: Sonic GX.
Rotor looked like how he did in the SatAM cartoon, but when he crossed over to Sonic's world, he changed to his Archie form.
Rotor is laid-back and enjoys inventing new things.
Iron Walrus Suit: A suit made to help his friends. It increases his strength, has missile launchers, and can generate heat.
In RSGX Rewrite, his suit is changed to his Iron Rotor Suit.