Sonic Boom #8 (2015)

Worlds Unite - Worlds Unite, Part Two: Broken Heroes
'Sonic/Mega Man: Worlds Unite,' Part Two: It was just another day at the races. Things start to get weird, even for the lovable, paranoid Sticks, when X and the Maverick Hunters arrived! Meanwhile, the epic bromance of the century is rekindled as the captured Drs. Eggman and Wily are forced to turn their life-long nemeses - Sonic and Mega Man - into minions for the terrifying Sigma! Sonic the Hedgehog and Mega Man unite once more-and this time Sonic Boom and Mega Man X are joining the fray! Featuring cover art from the legendary Patrick 'SPAZ' Spaziante, a special 'happy fun time crossover' variant by Ryan Jampole and part 2 of the epic 12-part connecting variant cover series by artist Ben Bates!
Release Date: 2015