I wouldn't be so sure about that, he's used a freeze gun frequently before, he uses a regular ol' shooter that shoots energy and straight up disintegrates people, he has a forcefield which stops people from hitting him as seen in Rickchurian Candidate as well as an ability that causes people to instantly die, the lab coat that literally copies Dr. Strange and has a mind on his own which would stop Megamind, as well as a watch that destroys people on a subatomic level. I get why you would think these are not common equipment for him, but at the same time, I don't think there's any reason to doubt the fact that they are. He always seemingly pulls them out of his coat like they are common equipment, and the things that aren't common equipment have episodes dedicated to them, well, NOT being common equipment and something he had to specifically bring or create for the moment. I straight up disagree on the fact that Megamind has a strong argument here.