I have to say the settings on the original Sonic games, back when it was set on Mobius before they brought it to the human world.
It may have been 2D, but they all felt right and were so varied. Combine them with the soundtrack, and it was fairly immersive for its day.
It may have been 2D, but they all felt right and were so varied. Combine them with the soundtrack, and it was fairly immersive for its day.