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.

May 3, 2025: We've renewed our search for new Sonic Speed Simulator codes for the Hero and Dark Shadow update. What are the codes for Sonic Speed Simulator? Well, we've confirmed all working Sonic ...