Rockman Gigamix

Mega Man Gigamix is a manga drawn by Hitoshi Ariga and connected with Mega Man Megamix, being that some chapters are prequels and others are direct follow-ups. The manga was published by BN in three volumes between 2009-2010 in Japan and by Udon Entertainment between 2011-2012 in the United States.

(Source: The Mega Man Knowledge Base Wikia)