Unlocking Shadow in Sonic Speed Simulator The Release Shadow mission banner (Image via Roblox) The basic variant of Shadow the Hedgehog is free to unlock once you reach the Lost Valley Zone.

Sonic Speed Simulator is a sandbox game where you can embody various characters from the Sonic the Hedgehog franchise and level up to become faster.

To earn an S-Rank in Sonic X Shadow Generations you'll need to tear through the level at high speed, showing good reflexes and good platforming to take a quick and efficient route to the goal ...

Here are all working Sonic Speed Simulator codes as of 28th August 2025: Not sure how to redeem codes in Sonic Speed Simulator? Here’s what you’ll need to do: ...

The Roblox game Sonic Speed Simulator is a racing game created by Gamefam x Sonic. If you are looking for the latest 'Sonic Speed Simulator' codes, then you have come to the right place.

When players begin Sonic Speed Simulator on Roblox, they'll find that they can't play as Sonic right away and that he takes some grinding to unlock.