The latest issue of GameSide magazine is out in Japan, and with it comes a nice little feature on Rockman 10's development. The special spans six pages and even touts some conceptual art of RM10's Robot Masters and their respective stages. Scans below!
UPDATE (7/5): The rest of the scans are out. Check them over at The Mega Man Network or after the break. There's some pretty fascinating stuff, well worth a look!