For those of you heading to PAX and finding yourself unable to wait until April 18th for the official release, you can head to Udon's booth number 124 and pick up a limited run debut of the Mega Man Robot Master field guide.
"Mega Man: Robot Master Field Guide: The long awaited complete handbook to the classic Mega Man universe! Profiles of every major Mega Man character, including all of the Robot Masters from CAPCOM’s™ Mega Man 1-10 video games, and much more! No fans of Mega Man fan will want to miss out!"
Thanks for the heads up Matt!
Link to initial story: UDON Blog