| Sonic Gems Collection | |
|---|---|
 North American GameCube cover art, depicting Sonic and Metal Sonic | |
| Developer(s) | Sonic Team |
| Publisher(s) | Sega |
| Director(s) | Mizuki Hosoyamada |
| Producer(s) | Yojiro Ogawa |
| Designer(s) | Makoto Hirata |
| Programmer(s) |
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| Artist(s) | Yuji Uekawa |
| Composer(s) |
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| Series | Sonic the Hedgehog |
| Platform(s) | GameCube, PlayStation 2 |
| Release | GameCubePlayStation 2 |
| Genre(s) | Various |
| Mode(s) | Single-player, multiplayer |
Sonic Gems Collection is a 2005 compilation of Sega video games, primarily those in the Sonic the Hedgehog series. The emulated games span multiple genres and consoles—from the Sega Genesis to the Sega Saturn—and retain the features and errors of their initial releases with minimal edits. Player progress is rewarded with demos of other Sonic games, videos, and promotional artwork spanning the history of the Sonic franchise. While its 2002 predecessor, Sonic Mega Collection, comprises popular Sonic games, Gems Collection focuses on more obscure games, such as Sonic CD (1993) and Sonic the Fighters (1996). Other non-Sonic games are included, but some, such as the Streets of Rage trilogy, are omitted in the Western localization.
Developer Sonic Team conceived the compilation to introduce younger players to older Sonic games. One game they wished to include, SegaSonic the Hedgehog (1993), was excluded due to emulation difficulties. Sega released Gems Collection for the GameCube and PlayStation 2 in August 2005. Reviews were mixed or average; critics were divided over whether the package would satisfy players. They preferred Sonic CD and Vectorman, but found Sonic the Fighters and Sonic R mediocre, and disliked the Game Gear games. Some were disappointed by the absence of the Streets of Rage games in the International version and other Sonic games like SegaSonic the Hedgehog, Knuckles' Chaotix and Sonic the Hedgehog Pocket Adventure.