Shadow the Hedgehog can be considered to be his rival. His arch-nemesis, however, is Dr. Eggman.
Adventures of Sonic the Hedgehog - 1993 Robotnik's Rival - 1.36 was released on: USA: 30 September 1993
If you mean by any other type of sonic games,yes in sonic rival 2
Shadow the Hedgehog, Sonic's rival, gave him that nickname because Shadow thought that Sonic was the "faker", when it was really vice versa.
Adventures of Sonic the Hedgehog - 1993 Robotnik's Rival 1-36 was released on: USA: 30 September 1993
Knuckles the Echidna i think so....
Sonic has ALOT of rivals. Two of the major ones I can think of are Dr.Eggman/ Dr.Robotnik and Shadow.
You can get chaos emeralds by defeating bosses. There are rival bosses and there are the actual bosses.Here is a list of the rivals and the bosses and which sonic you use. Rival Metal Sonic- Classic Sonic Shadow the Hedgehog- Modern Sonic Silver the Hedgehog- Modern Sonic Boss Egg Death Robot- Classic Sonic Perfect Chaos- Modern Sonic Egg Dragoon- Modern Sonic I know that you verse Silver the Hedgehog in Crisis City from Sonic '06 and the Egg Dragoon Eggmanland from Sonic Unleashed.
The anagram of sonic the hedgehog "sonic the hedgehog."
sonic the hedgehog
sonic the hedgehog
sonic the hedgehog
sonic the hedgehog