Unlocking Shadow in Sonic Speed Simulator The Release Shadow mission banner (Image via Roblox) The basic variant of Shadow the Hedgehog is free to unlock once you reach the Lost Valley Zone.

How do I get Doom Shadow in Sonic Speed Simulator? Doom Shadow can be unlocked by completing the three quests that are part of the Sonic X Shadow Generations collab event.

Earning an S-Rank is one way you can prove your mastery of a stage in Sonic X Shadow Generations, so here's how it's done.

Here are all working Sonic Speed Simulator codes as of 28th August 2025: Not sure how to redeem codes in Sonic Speed Simulator? Here’s what you’ll need to do: ...

Sonic X Shadow Generations has a bunch of returning enemies to face off in both of the titles. One of the fortunate ones is Shadow the Hedgehog, who now has his own game attached to Sonic Generations.