Sonic Mega Collection Plus (ソニック メガコレクション プラス) is an update of Sonic Mega Collection for the PlayStation 2 and Xbox consoles. A PC version was also released in Europe and North America. This edition includes the addition of six Game Gear games, the two games that were included in the Japanese version of Sonic Mega Collection (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 final Japanese revision of the original Sonic the Hedgehog is included. The PC version was released on March 9, 2007 in North America. The localization for this version of the game is the European Localization. The original packaging says CD-ROM, but it is instead a DVD-ROM; it will not play in a CD-ROM-only drive. The European packaging does have this mistake as well. The PC version also uses the PAL-50 versions of the Mega Drive games instead of the NTSC-60 ones, causing slower gameplay on some titles.
The following Game Gear games were added: