This info comes from the Sega of America blog.

- Lost Labyrinth Act II: entire level has been revamped and finalized for consoles
- new torch mechanic
- much of the act is pitch black save for the torchlight around you
- blow up parts of the level with your torch to make new path
- trigger hidden parts of the ancient ruins
- minecart still included in the end of the level, but not motion controlled
- update to Sonic’s running animation, especially as you build up speed
- trigger the blurry feet faster, and in a time frame more comparable to the classics
- difficultly tweaked to make some parts easier
- next round of updates revealed in September