I know I had the plugin at one point but can't find it on my computer or in the forums.
I don't know if this is the plugin you are referring to, but here is a link to a Mega Man plugin I posted a month ago.
http://www.lackeyccg.com/forum/index.php?topic=2359.0 (http://www.lackeyccg.com/forum/index.php?topic=2359.0)
You could probably find some other Mega Man plugins on this forum with a quick search.