Celebrate Sonic's birthday with a new event that unlocks Tuxedo Classic Sonic, the first alternate skin for Classic Sonic in Sonic Speed Simulator on Roblox. Check out some short gameplay, shown ...

In order to unlock Sonic the Hedgehog himself, newcomers to Sonic Speed Simulator will need to adjust to a rather slow speed at the start of the game. As they make their way through the Green Hill ...

Roblox Sonic Speed Simulator is a running game where you will be building up your top speed so that you can go fast! The game ...