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 3D platformer experience on the Roblox platform inspired by the Sonic franchise. Similar to many other Roblox games, Sonic Speed Simulator offers a code redeem feature that ...

Earlier today Sega announced a partnership with Gamefam to bring Sonic to Roblox in the brand-new game, Sonic Speed Simulator.