Warera Hobby's Famicom Seminar

Warera Hobby's Famicom Seminar (われらホビーズ ファミコンゼミナール) is a Japanese gag manga that parodied several Famicom games, one of them being Rockman 2: Dr. Wily no Nazo in chapter 36. It was serialized in Monthly Shōnen Jump between 1986-1990 and released in four tankōbon volumes, the Rockman 2 parody being in volume 3.

Rockman 2 parody
Dr. WIly is in the Wily Castle

Rockman

...

Wily UFO

Air Man and Heat Man combine to form "Fan Heater Man".

Rockman