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