The ending includes a list of robots created by Dr. Light, along with portraits. It even states what each robot was created for (this includes the Robot Masters from Mega Man I (NES), and Roll, Mega Man, and Proto Man.)
All eight Robot Masters in this game would appear in two Game Boy spin-offs. Magnet Man, Hard Man, Top Man and Needle Man would appear in "Mega Man II". Shadow Man, Spark Man, Snake Man and Gemini Man would appear in "Mega Man III".