Sonic and Sega Allstars Racing is the first game. Allstars Racing Transformed is the sequel, which adds in transforming vehicles (car, boat, and plane modes), and is generally considered the better game by far. Also, Transformed has online multiplayer, whereas the PC version of the first game does not.

In August 2017, Sonic and All-Stars Racing Transformed was taken down from the App Store and Google Play due to technical issues. August 2017 also saw a re-release of the Wii U version under the Nintendo Selects label.

The game features online multiplayer on all versions and four player split-screen multiplayer for the consoles. Some of the career modes can be played in split-screen multiplayer.

Sonic & Sega All-Stars Racing is a 2010 kart racing video game developed by Sumo Digital and published by Sega. It was released for Wii, Xbox 360, PlayStation 3, Nintendo DS, and Windows, featuring characters from multiple Sega franchises.

To this date, Hyper Sonic is recognized as the most powerful form of Sonic ever.

Originally Answered: What is Sonic the Hedgehog's most powerful form? Hyper Sonic. Not only can he run and fly even faster than Super Sonic, he can knock out everything on screen with a single flash and boost to higher platforms! Needless to say, this REALLY breaks the game.

Many felt Unleashed was not the game to reinvigorate the series. Sonic Unleashed was delisted from retailers in 2010, following Sega's decision to remove all Sonic games with below-average Metacritic scores from sale.

It failed commercially and received mixed reviews; although critics praised its gameplay, they criticized the pop-up ads, pay-to-play elements, and technical problems. Sega discontinued the game in July 2016. Gameloft released a replacement game, Sonic Runners Adventure, in 2017.

Sonic The Hedgehog 2 introduced a competitive two-player mode that will be available once more, along with newly added features such as drop dash, rankings, time trial, and Knuckles!

In the default single-player game mode, the player controls Sonic and Tails simultaneously; a second player can join in at any time and control Tails separately.

Amy Rose. Amy Rose is a pink hedgehog and Sonic's self-proclaimed girlfriend, who is an energetic tomboy. Amy was created by Kazuyuki Hoshino for Sonic the Hedgehog CD (1993), although she appeared Kenji Terada's Sonic the Hedgehog manga a year before.

Sonic Team began to work on a new intellectual property, Nights into Dreams (1996), for Sega's 32-bit Saturn console. In 1996, towards the end of the Genesis's lifecycle, Sega released Sonic 3D Blast, an isometric game based on the original Sonic 3 concept, as the system still had a large install base.