Following the release of
Sega Superstars Tennis,
Sumo Digital decided to do a racing title, based on their experience with recent
Out Run titles. In an early prototype of the game, Sonic raced on foot, Dr. Eggman rode an Eggpod with legs, Tails flew in a biplane, Amy Rose drove a car, and Gilius Thunderhead from
Golden Axe rode one of the Chickenleg creatures from the game. This version, however, was reportedly not fun to play, largely due to the varying sizes between the different characters, but also because the drift mechanic wouldn't work with racers who were on foot. It was later revised so that everyone would be in cars, bikes, or modified flyers. On November 25, 2009, a special press event about the game was held in France, where the DS version made its playable debut. Sumo collaborated with
Banjo-Kazooie development studio
Rare for the character's inclusion, with Rare giving Sumo access to their asset library as well as designing and modeling Banjo and Kazooie's in-game vehicle. The Xbox 360 version also features playable
Avatars, while the Wii version includes playable
Miis. Three demos of the game were released: The first, for the Xbox 360, was released on the
Xbox Live Marketplace on February 8, 2010. The second, for the Nintendo DS, was released via the
Nintendo Channel on February 15, 2010. The third, for the PlayStation 3, was made available on the
PlayStation Network Store on February 18, 2010.
Planned characters ToeJam & Earl were originally planned to be in
Sonic & Sega All-Stars Racing as a duo driving their spaceship, but Sega could not come to terms with
ToeJam & Earl Productions co-founder
Greg Johnson. However, fans have called and mass-emailed Johnson for his characters' return. He has responded on the official Sega forums under the pseudonym 'Big Earl' stating "I'll give it another try and see if I can get the homies at Sega to talk again on the phone." He later mentioned that the duo will not be appearing in the game, since it is too late in development. In its prototype form, Gilius Thunderhead from
Golden Axe was a playable character who rode one of the Chickenleg monsters from the game. In his developer diary, Lycett makes it clear that this does not confirm him as a final character. This is the case with Gilius, as he did not make the cut into the final roster. Lycett has also talked about
Vyse from
Skies of Arcadia in an interview with
Gamereactor. Both Gilius and Vyse would later be playable in the game's sequel,
Sonic & All-Stars Racing Transformed.
Segata Sanshiro was also considered as a possible character, riding a
Sega Saturn, though he did not end up in the roster. Early in development,
Mario was considered as a Wii-exclusive addition, but Sega decided against it so as not to cause cross-contamination with its
Mario and Sonic series. Lycett has also mentioned there will be various cameo appearances from other Sega characters who didn't make it in the playable roster. Following a successful fan campaign for the character's inclusion,
Nights was integrated into the game as the flagman.
Downloadable content Producer Omar Woodley confirmed in an interview that there would be DLC for the Xbox 360 and PlayStation 3 versions of the game. As a pre-order bonus for the Xbox 360 and PlayStation 3 versions in PAL regions, an alternate version of
Ryo Hazuki was made available to download in which he would drive his forklift outside his All-Star move as his standard vehicle. This character was later made available for purchase on April 1, 2010. Exclusive DLC for the Xbox 360 version include a game add-on that unlocks all characters and tracks without using SEGA miles, released March 16, 2010. Avatar content for the game was released on the Xbox Live Marketplace on March 25, 2010. A pack containing
Metal Sonic as a playable character and the "Death Egg Hangar" track, with
Ristar as a cameo appearance, was officially released on the Xbox Live Marketplace on April 8, 2010, and the PlayStation Store on April 22, 2010. ==Reception==