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.

In Roblox 's Sonic Speed Simulator, you'll be zipping around at the speed of sound with your favorite characters from the Sonic series, leveling up by picking up Chaos Orbs to attain greater ...

Sonic Speed Simulator is a popular fan-made game on Roblox that has support from SEGA, and there are some codes players can use to unlock items.

Sonic Speed Simulator for Roblox adds new characters every other update, and Knuckles the Echidna wraps up the classic character roster nicely.