Sonic R is one of two Sonic games that have been included to the Arcade Collection, the other being Sonic 3D Blast. According to Ian Flynn, one of the notes supplied to him by Sega of Japan suggested that Sonic R is canon. The "R" on the game's emblem was subsequently repeated in Team Sonic Racing.
However, both Sonic R and Sonic 3D Blast were released outside of North America so they could not be part of the annual Sonic Anniversary Celebration events held during their respective years (1994 for Sonic R and 2003 for Sonic 3D Blast). Additionally, no characters from Sonic R appear in any other game in the Sonic series except for Tails who makes an appearance as a playable character in Sonic Adventure 2. This implies that Sonic R is not canonical within the main series.
Some fans believe that Sonic R is more important than others because it is the first real video game adaptation of the Sonic the Hedgehog franchise. However, this belief is only supported by the fact that it is the first official game in the series and not by any actual content or details in the game. For example, there are no linear levels nor checkpointing; instead, each section of the game is considered a separate level that must be completed in its entirety before moving on to the next. Also, some aspects of the gameplay are different from those in future titles in the series.
There are several inconsistencies between Sonic R and later games.
Sonic Team also considered incorporating BlueSky Software's Vectorman (1995), while Sonic R (1997) and Sonic Shuffle (2000) were formerly slated to be in the Mega Collection. CD, Vectorman, and R subsequently featured in the Sonic Gems Collection (2005), the Mega Collection's successor concentrating on rare Sonic games. However, due to copyright issues with BlueSky, these games are not available for purchase within the United States.
In addition, a Game Gear game titled Sonic the Hedgehog was planned but never released. However, a prototype copy of this game was discovered by Nintendo Power magazine staff members in October 1994. They reported that it resembled Sonic the Hedgehog very much but played more like a traditional side-scrolling action game. A few changes were made before release including adding power-ups and changing the character design from that of Sonic the Hedgehog to that of his modern redesign. This version was never released outside of Japan.
Finally, a Dreamcast game titled Sonic Adventure was also planned but cancelled prior to release. It was meant to feature multiple characters exploring different regions of a fictional world called "Dr. Eggman's Dimension".
Games featured in the Sonic the Hedgehog series include: Sonic the Hedgehog (1991), Sonic the Hedgehog 2 (1993), Sonic 3D Blast (2001), Sonic & Knuckles (1994), Sonic CD (1998), and Sonic Generations (2014).
Sonic Spinball is not an official Sonic game. However, it is popular among fans of the series.
Hyper Sonic is a canon character, but not in the way you may assume. He is part of the Hyper-Space Family which includes characters such as Hyper Man and Hyper Woman. Like so many other characters from their universe, they are able to manipulate energy, in this case for attack purposes. They can use this energy to create explosions, fire balls, etc.
Hyper Sonic's real name has not been revealed yet. However, he has been confirmed as one of DC's Hyper Heroes who were created by Dan DiDio and Jim Valentino.
Valentino originally introduced Hyper Sonic as a villain during the Infinite Crisis miniseries. After that event, he got the chance to play with some of his characters again when the "Hyper-Space" line was relaunched. Since then, Hyper Sonic has appeared in several titles published by DC Comics including Justice League International and Teen Titans.
He has also been featured in video games based on those properties. These include Batman: Arkham Asylum, Batman: Arkham City, Batman: Arkham Origins, and Teen Titans Go! To The Movies.
Sonic first appeared in a promotional comic printed in Disney Adventures magazine (and also given away as a free pull-out with a copy of Mean Machines magazine), which established a backstory for the character involving the origin of his color and abilities, as well as the transformation of kindly scientist Dr....
Sonic first appeared in a promotional comic printed in Disney Adventures magazine (and also given away as a free pull-out with a copy of Mean Machines magazine), which established a backstory for the character involving the origin of his color and abilities, as well as the transformation of kindly scientist Dr. Eggman into the ruthless tyrant we know today from his future self.
In the comic, we learn that Sonic's world was once inhabited by humans, but they all died when a catastrophic earthquake struck, causing Mount Ebott to collapse on top of them. Sonic's home town of Station Square was destroyed during this incident, and he has been searching other worlds for replacements that were also destroyed so that he can bring them to life and let them help rebuild their communities. He succeeds in doing so with the aid of Tails, a young fox who lives in Sonic's home town. After giving him a new friend to play with, Sonic goes off in search of more people who need his help.
Now, here's where things start getting a little crazy. Apparently not content with simply creating life, Sonic decides to keep going and give everyone else's homes too!