The Sonic 'Secrets' sites are sites that talk about the hidden or secret elements within the line of Sonic the Hedgehog games. (AKA Hacking Theories & Discoveries Sites)

If you are looking for secret Sonic The Hedgehog information that is available through various research methods or just plain game play, or if you have desire to gather knowledge about lost levels such as the Dust Hill Zone and Sonic 2's Hidden Palace, Area51 is the place for you! The site also covers most of the less-mainstream Sonic games as well.

Area 51 (11-04-02)

Andre' Dirk's website has come a long ways. He created a website devoted toward exposing the little known secrets in Sega's line of Sonic the Hedgehog games. He also put up some exclusive screen shots of never released levels for Sonic the Hedgehog 2! However, now a new generation of Secrets of Sonic the Hedgehog has immerged thanks to the new owner, Knuckles the Echidna. The largest site of secrets you'll ever find.

Secrets of Sonic the Hedgehog (11-22-01)

Want to learn how to hack into the Sonic 2 final cart to expose the Hidden Palace Zone, or how about hacking Sonic 3 to "enable" Knuckles from the character select menu? Why not from the guy who first discovered these hacks? Tom has all this information, and more on his hacking section.

Tom's Sonic Hacking Station (08-22-02)