Sonic Jam

Sonic Jam is a video game for the Sega Saturn and Game.com. The Saturn version is a compilation of titles in the Sonic the Hedgehog series originally released on the Sega Mega Drive/Genesis. It was released in Japan on June 20, 1997, in North America on July 31, 1997 and in Europe during the month of August 1997.

It includes the main Mega Drive/Genesis anthology (including Sonic & Knuckles and its lock-ons); Sonic Spinball, Sonic 3D Blast and Dr. Robotnik's Mean Bean Machine are not featured. The compilation also includes a 3D "Sonic World", which allows players to access virtual museums featuring Sonic the Hedgehog history, art, music and advertisements, as well as remastered and uncut animation sequences from Sonic CD. Sonic World functioned as both a hub for the extras and as its own game, utilizing missions such as ring-collecting, reaching markers, or finding Tails. Completing all the missions would unlock the credits for Sonic Jam.

Games included in this collection are:

• Sonic the Hedgehog
• Sonic the Hedgehog 2
• Sonic the Hedgehog 3
• Sonic & Knuckles

Sonic Gems Collection

Sonic Gems Collection is a GameCube and (in Japan and Europe) PlayStation 2 compilation of the more obscure games of the Sonic the Hedgehog series.

Games

• Sonic the Hedgehog CD (Sega CD, port of the PC version, ported by Sonic Team)
• Sonic the Fighters (Arcade, ported by Sega-AM2)
• Sonic R (Sega Saturn, port of the PC version, ported by Traveller's Tales)

The collection also includes the six Game Gear games that were absent in Sonic Mega Collection Plus, which are:

• Sonic the Hedgehog 2
• Sonic Spinball
• Sonic Triple Trouble
• Sonic Drift 2
• Tails' Skypatrol
• Tails Adventure

The two only unlockable games in all 3 regions are:

• Vectorman
• Vectorman 2

The other four unlockable games are only in the Japanese version are:

• Bonanza Bros.
• Streets of Rage
• Streets of Rage 2
• Streets of Rage 3

Sonic Mega Collection (Plus)

Sonic Mega Collection Plus is a update of Sonic Mega Collection for the PlayStation 2 and Xbox consoles. A PC version was also released in Europe. This edition includes the addition of six Game Gear games, the two games that were included in the Japanese version only (The Ooze and Comix Zone), new artwork and movies, a new in-game menu, and a mid-game saving feature. It is, however, missing six Sonic Game Gear games that were included (along with the six included in this collection) in Sonic Adventure DX: Director's Cut, but they would later appear in Sonic Gems Collection. In addition, only the Japanese version of the original Sonic the Hedgehog is available. It is the first Sonic game with a 12+ PEGI rating. The PC version was released on March 6, 2007 in North America. The original packaging says CD-ROM, but it is instead a DVD-ROM; it will not play in a CD-ROM-only drive.

The following Game Gear games were added:

• Sonic the Hedgehog
• Sonic Chaos
• Sonic Drift
• Sonic Labyrinth
• Dr. Robotnik's Mean Bean Machine
• Sonic Blast

Sonic & Knuckles Collection

Sonic & Knuckles Collection is a Sonic the Hedgehog compilation game for Microsoft Windows-based PCs.

The ports have all of the music emulated in MIDI format. Some music (that of Carnival Night Zone, Ice Cap Zone, Launch Base Zone, Knuckles' theme, and the credits music.) was replaced with original music. One possible explanation for this is that those pieces of music used both MIDI and Wave output, and some sound cards of the time were not capable of doing so. Another explanation for the replacement is that the songs were replaced due to legal reasons, because connections could be made between similar songs by Michael Jackson. [1] Other than that, the gameplay is identical to their Genesis counterparts.

The collection includes:

• Sonic the Hedgehog 3
• Sonic & Knuckles
• Sonic 3 & Knuckles
• Blue Sphere (in options dialog as "Special Stage Mode")

Sonic Compilation

Sonic Compilation is a game compilation released in 1995 for the Sega Mega Drive containing three previously released Sonic titles: Sonic the Hedgehog, Sonic the Hedgehog 2, and Dr. Robotnik's Mean Bean Machine. The 1997 released North American Genesis version was renamed to Sonic Classics 3 in 1.

Sonic Compilation was the first collection of multiple Sonic games on one cartridge. In some locations, it even was bundled with the console during its later years.

Sonic the Fighters

Sonic the Fighters (Sonic Championship in US arcades), is a fighting game in the Sonic the Hedgehog series. The game's original title is used in North American and European releases of Sonic Gems Collection. The game was once planned for release on the Sega Saturn, but was cancelled for that console.

Sonic R

Sonic R is a racing game developed by Traveller's Tales and Sonic Team for the Sega Saturn and PC, the latter version being ported to the GameCube in Sonic Gems Collection. It features characters from the Sonic the Hedgehog series. The game is characterized by the same sense of environmental openness in the Sonic platformers. It contains colorful 3D graphics combined with a strong soundtrack by Richard Jacques (including songs performed by British singer T. J. Davis).