Stay Sonic features a history section based on the backstory given in the American comic Sonic the Hedgehog Promo Comic. Both come from Sega of America's internal "Sonic Bible" documents. This backstory was dropped in American media such as Sonic Sat AM and Archie Comics' Sonic the Hedgehog and was never canon in Japan, but it used extensively in European media until Sonic Adventure.
Sonic Says also includes various other tidbite such as a Sonic quiz, a diagram of Robotnik's Eggmobile, descriptions of the badniks of Sonic the Hedgehog 2, tips on how to play the game.
Nigel Kitching, one of the lead writers of Fleetway's Sonic the Comic, owned a copy of Stay Sonic and used it as a basis for the lore of the comic.
Sonic Says contains examples of:
- Bowdlerization: The original document was grimmer:
- Sonic's father dies by falling into toxic waste.
- Sonic is mentioned as being extremely poor.
- He is almost non-morphic in this story, rather than simply brown.
- Hibernation is important to the plot.
- Create Your Own Villain: Dr. Kintobor was a benevolent scientist until an accident turned him evil.
- Early Adaptation Weirdness: It features many differences from later canon, such as Sonic and Robotnik having been friends once.
- Earth Drift: Inverted.
- Fantastic Science: Tails can fly because he has double joints where his tails join his spine.
- FaceHeel Turn: Dr. Robotnik was originally a kindly scientist but a freak accident turned him the way he is.
- Parental Abandonment: Sonic.
- Talking Animal: Sonic learned human language through the Lingua Scrambler.
- Translation Convention: Used in the early scenes in the forest.
- Unfortunate Name: Joe Sushi the walrus is referred to as "unfortunately named".