The cult indie classic will feature expanded levels in the upcoming 3DS remake.
http://www.nintendoworldreport.com/news/27364
Cave Story producer Jack Niida confirmed some of the new features in the 3DS version of Cave Story.
The first of these is that it will feature expanded levels. When asked further, he explains that "For the old time fans of Cave Story, there aren’t brand new stages, but what we did for these stages is we expanded it. So, there is more to it than there was before. There are new areas to explore, long time fans will definitely see the difference. Daisuke Amaya spent a long time creating this game and everything has been tweaked to fit the latest console,".
With the game being published by NIS America, it is expected that the game will feature a crossover of sorts. "You can probably expect our most popular character in there. Aside from that, you might see him as an item, as well." - Niida said. Several artwork pieces have shown Cave Story's lead character alongside Prinny, from the Disgaea and Prinny series.
Finally, Niida confirmed that the 3DS version will lack the original and DSiWare version as a bonus. His explanation for the absence is that "That’s one thing we were talking about too, but the problem was the amount of space on the card size. We sort of squeezed everything in and at this point we don’t have enough space for it."
Cave Story 3D will be released on November 8, 2011.