First trailer showing gameplay footage of the Rockman Zero Collection for Nintendo DS- So, a complete strait port with almost no differences it would seem. Contains all 4 Zero games, no improvements in graphics, likely none in sound either. Not that it needed it though. Looks like you can collect artwork (or maybe it's there from the start) to use as wallpaper to fill up the unused screen. Aside from that, the only difference is the view size, which has been expanded to DS resolution I assume. I guess we can see a few pixels farther than we could originally. Music is likely the same too, GBA music is used as the soundtrack for the trailer. EDIT- "UPDATE: Upon closer inspection, the menu depicted at the 1:15 point looks to an e-modification card menu... The Rockman Zero modification cards were cards sold exclusively in Japan in 2004, and when used with Nintendo's e-Reader device, they would make minor modifications to Rockman Zero's 3 gameplay. To accommodate for the lack of an e-Reader, Zero Collection looks to be implementing this system within the game itself. 'Course, this is just speculation, so don't take my word for it. " http://protodudesrockmancorner.blogspot.co...ut-trailer.html April 22, 2010 for Japan. No US date yet, we'll see.