Known in Japan as Rockman 4: Aratanaru Yabou!! ロックマン4 新たなる野望！！ Rokkuman 4 Aratanaru Yabou!!, which means, "Rockman 4: A New Evil Ambition!!
ISSUE # X43
Rockman 4 introduced Dr. Cossack who is instrumental to the Glitch Boy Series. Watch Part One Below.