While most players prefer being Sonic in Sonic Speed Simulator ... to help you obtain Knuckles in the game. You can find Knuckles' hub in the Lost Valley (Image via Roblox) To find Knuckles ...

To redeem codes in Roblox Sonic Speed Simulator, you will just need to follow these steps: If it’s a brand new code that doesn’t work, try closing out of the game and re-opening it.

Roblox's Sonic Speed Simulator has you running around the areas you've come to know and love from past Sonic titles, ...