Classic Era
In Sonic 2, a zone was developed and cut at the last second. What zone was it?
Hidden Palace Zone.
What city formed the basis of Sonic Adventure 2's city?
San Francisco.
What game introduced the Red Rings?
Sonic Colors.
Sonic Origins Plus contains a notable addition. What is it?
Amy Rose being playable in multiple games she was previously unplayable in.
What characters from the comics had a notable inclusion in recent games?
Tangle and Whisper in Crossworlds.
What video game had a fisheye lens and two game engines?
Sonic Xtreme.
What was Shadow's original name going to be?
Terios.
What game had the working title of Sonic Adventure 3?
Sonic Unleashed.
What Vtuber is prominently referenced as DLC and is featured as Sonic's global ambassador?
Inugami Korone of Hololive.
A glitch in Knuckles Chaotix formed the basis for an IDW character. Which character?
Doctor Starline (the glitch is Wechnia, where Knuckles will turn white/grey).
What mythological place does Flicky Island from Sonic 3D Blast have as a part of it?
Atlantis (referenced in the game's manual).
What unusual outfit does Rouge have in Sonic Adventure 2's multiplayer mode?
A dominatrix outfit.
What ties in Sonic Mania and Sonic Forces?
The Phantom Ruby.
What classic era characters return in this era?
Fang (Sonic Superstars) as well as Mighty and Ray (Sonic Mania Plus).
What did Sonic 2 almost have that was later brought back?
A time travel mechanic (it was prominently featured in Sonic CD).
What is Sonic's debut appearance?
Rad Mobile, from 1990 (he's a rearview mirror decoration).
What real world country is referenced in and canon to the franchise?
Japan (Shadow the Hedgehog).
What caused Infinite to become who he is and work with Dr. Eggman?
Shadow "eliminated" his squadmates and almost killed him too (Sonic Forces' Shadow DLC and tie-in comic).
What character is referenced in Sonic Frontiers but not seen?
Tangle the Lemur.
In Sonic CD, there is a notable error in the US manual when talking about Amy Rose. What is said error?
They refer to her as Princess Sally.
Sonic was supposed to have a love interest. What was her name?
Madonna.
Metal Sonic, Mighty, and Ray.
What game shares coincidental similarities to Sonic Xtreme?
Sonic Lost World.
What non-canon game is referenced in Sonic Racing Crossworlds?
Sonic Colors for the DS, as Silver and Knuckles reference their adventures on Sweet Mountain.
What was notable about the 90's attempt to make a Sonic movie?
It served as a tie-in for Sonic Xtreme.