Well it took me a while but I finally established a main villain for Captain Massive. Something I should've done AGES ago!

Here we have Professor Protuberance, a mad evil scientist and actually the true source of Captain Massive's power when Fang got ahold of one of his inventions which gave him his powers (I'll explain that later.)

Professor Protuberance is an inventor who loves to torment his subjects by changing and distorting them in all kinds of way whether they want it or not. Whether they survive it or not. Pretty evil, right? Captain Massive needed an actual villain to pursue instead of seemingly innocent victims for his own pleasure.