I don't get how everybody always says that Syndrome was not a super. Even himself didn't realize that he was clearly one. He had Super Intelligence. Tell what kind of 10-like kid can build rocket shoes and fly with them? Or as an adult be able to build death robots capable of taking on the strongest supers of the world?
Seriously
I don’t get how everybody miss that point, he was a super all along.

adding on that idea, I’d like to say that him being a super makes its participation in the movie to be even more of a villain because adds a touch of hypocrisy to his speech of besting the supers as a normal, he wasn't besting superiors, he was killing equals.