Sonic Speed Simulator is an official Sega game on the Roblox platform. In Sonic Speed Simulator, you'll be zipping around at the speed of sound, unlocking different characters from the Sonic ...

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.

Players have to unlock the new characters in the game to enjoy them. The Sonic Speed Simulator has quite a large open world for the players so that they don’t get bored while playing the game.

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 ...

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