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Popular Steam Guides Written guides, references, and walkthroughs
Saviour of the Planet Guide
by Wirdjos
This is a guide to the location of the Roboticizer and Metal Sonic Hologram in each zone. This guide also includes a selected past signpost for each zone and an easy way into the past. There is a screenshot of each location to help with landmarks. Good lu...
Unlockables, Soundtest-Codes,Mods(and Achievments,kind of)
by Leonard
All the Unlockabled, how to unlock them and an extra mod...
Achievement guide (rus)
by Kyou
Achievement guide for russians, may contains spoilers. Sometime i translate it, maybe....
Sonic CD - Blast Processing (SweetFX)
by Phantasm
Simulate a CRT TV or Arcade Monitor and improve the color in Sonic CD with this SweetFX preset....
King of the Rings - achievement tips
by Flash~Step
Here are some tips to help you get the king of the rings achievement....