Yeah, someone over at The Sonic Stadium has recently found a video of Sonic 4 where you can see the world map for a few seconds. As you can see from the picture above it shows off all the zones we’ll get to play in the game. Of course the map is entirely optional and you can progress through the game level to level (much like the older games), but this seems like a good way to collect all the Chaos Emeralds so I’m cool with it.
Oh! Also another thing about it is that the shaded area to the right could possibly be a bunch of levels from the next Sonic 4 episode. Just a thought. Neat, huh?
[Source: The Sonic Stadium]