Sega‘s first attempt to make a fully 3D Sonic game was first published on the Dreamcast on December 23rd 1998, and while it’s not a bad game – it’s not a great one either.
The third and final Sonic Advance game – Sonic Advance 3 – was published by Sega on the Game Boy Advance in 2004. It was again developed by a third-party developer, Dimps.
Sonic Advance 2 was again developed by Dimps for Sega, who published it exclusively for the Game Boy Advance in 2002.
Sonic Advance was the first Sonic game to appear on a Nintendo platform, and it was developed by Dimps and first published by Sega in 2001.
Released in 1989 for the Sega Megadrive/Genesis, Phantasy Star II is a pioneering RPG for its time. It’s a sequel, obviously; to the classic Sega Master System release of 1987, Phantasy Star.