In Sound Test, play: 01, 09, 09, 02, 01, 01, 02, 04. Sonic 2 (Emeralds): In Sound Test, play: 01, 01, 02, 04.
Up, Down, Left, Right (chime), then hold Square/X and Start. Sonic Mega Collection Plus
Unlock additional games by opening and exiting specific titles multiple times, returning to the main menu each time: Play Sonic 1 and Sonic 3D Blast 20 times. In Sound Test, play: 01, 09, 09, 02, 01, 01, 02, 04
For full walkthroughs, maps, and tips, see resources on GameFAQs or IGN. Original, in-game manual scans are also available via the main menu. Sonic Mega Collection Plus – Guides and FAQs - GameFAQs Unlock additional games by opening and exiting specific
Play Genesis games 50 times, or have a Sonic Heroes save file. The Ooze : Unlock the above or use a Sonic Heroes save. Classic Game Cheats
is a compilation of classic SEGA titles originally released for PlayStation 2, Xbox, and PC. This guide covers how to unlock hidden games and use classic cheats. Unlocking Hidden Games