* Sonic the Hedgehog has a wide variety of friends and allies, including:
* Tails: A two-tailed fox who is Sonic's best friend and a skilled mechanic.
* Knuckles: A red echidna who is initially a rival to Sonic but becomes a close friend.
* Amy Rose: A pink hedgehog who has a crush on Sonic.
* Shadow the Hedgehog: A dark counterpart to Sonic who is initially an enemy but eventually becomes an ally.
* Big the Cat: A large, laid-back cat who is a friend to Sonic.
* Cream the Rabbit: A young rabbit who is a close friend to Amy.
* It's possible "Shock the Hedgehog" is a fan-made character or from an unofficial spin-off. If you have more context about where you encountered this name, I might be able to provide more specific information.