Type in SONIC RETRO, click it then go to HACKS in the left of the screen, then a list of hacks will come up. Find Sonic The Hedgehog Megamix then go to the bottom of the page for the download link and pick either the US, European, or Japanese... the file is very small, then PLAY!!
NEW
Download it here I Dont know if you can click on it but mabye you can copy this You Can Also Now Play as Tails And Knuckles. (version 3.5 Is Not on Genesis It Is now on Sega CD So Its A rar file so you can extract it here:http://rarlab.com/download.htm Enjoy once again)
No You can't play Sonic CD on the Websites, You play Sonic CD on the Sega CD, Right?
Sonic CD was the first and only Sonic the Hedgehog game to be released for the SEGA CD.
SEGA CD, PC, and rereleased in Sonic Gems Collection for GameCube.
He's owned by SEGA and the first game system he was ever on was the SEGA Genesis, in the early 1990's they used to be alot of Sonic games, his first game is called ''Sonic The Hedgehog'' later, they came out in sequels, Sonic 2, Sonic 3, Sonic and Knuckles, and Sonic CD (Get the SEGA CD add-on to play Sonic CD) In the future, he's been seen at, ''SEGA Saturn,Dreamcast,PS2,Wii, and the Xbox360
to play sonic CD-create a genesis folder First- you must have a genesis.I recomend kega fusion.Google it Second -you must get the sega CD bios.Google it third-go to options and select set config and select sega CD on the kega genesis fourth-put the bios in the matching country sections fifth- you must get the sonic CD iso file.Google it.drag sonic CD.iso into your genesis folder without opening it sixth-to start the game on the genesis,go to file,load sega CD image and click on the sonic CD.iso zip file. seventh-the sega CD screen should come up.press start and enjoy Note-If you want sonic CD to be more fun,go to http://info.sonicretro.org/ and search for sonic CD plus plus for sonic 2 spin dash,megamix homing attack and air roll Warning-If you get no music in game,i will search for a solution and post it for you.If you get a message saying ram cartridge not inistlised go to options-set config-sega CD.Go to CD plus g and check cooked.then go to built in ram and check per bios and restart.it should work now
As this is only an statement question, I'll anwser it with my own opinion. Personally I think Sonic CD was better as it had slightly better graphics, cartoon like cut-scenes (first Sonic cut-scenes I think) and also had a better story line (with Metal-Sonic) so that is why I think Sonic CD is best, but it's up to you really.
Get a SEGA CD. get it
A on SEGA CD and X on PS2 (Gems Collection)
go to....software.com and type sonic CD
Sega never specified it, but the first time they met, was in Sonic CD. They met right before Amy was captured by Metal Sonic.