Sonic Speed Simulator has you embody characters from Sonic the Hedgehog and explore massive Zones where leveling up makes you faster.

How to unlock Shadow the Hedgehog in Sonic Speed Simulator? Shadow the Hedgehog can be unlocked by completing the Release Shadow mission set, which includes five objectives.

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 ...