Mega Man - Robot Masters go through a lot of revisions before they make it into a game. Check out some concept designs for Mega Man 9! | Facebook
Mega Man: Robot Master Field Guide - Updated Edition - By David Oxford & Nadia Oxford (hardcover) : Target
![I made more pixel art renditions of Robot Masters, this time based on the ones from Mega Man 3! : r/Megaman I made more pixel art renditions of Robot Masters, this time based on the ones from Mega Man 3! : r/Megaman](https://i.redd.it/9ynlsgdhnpc81.png)