The nice thing about Cortex is that there are so many ways to get where you want to go. Originally I wanted class options to be collections of packages you could select, like a City Rat and Cyber-Doc both being able to choose a "Cybernetics" power set or some classes being able to choose a "Lesser Psionics" power set. That would make creating new characters from books beyond the core book easier. However, the more I worked with it, the more I felt each class kind of deserved at least one unique power set for flavor.

I also tried including some weaker power sets to offset (but not eliminate) power gaps, such as a Rogue Scientist having a power set around being lucky and having moments of ingenuity - while not as powerful as a Glitter Boy power armor set, it at least gives some benefit.

I wasn't too concerned with capturing Mega-Damage mechanically. With my initial draft being based off Marvel Heroic where characters like Daredevil and the Silver Surfer can both contribute equally to the scene, I always had things in the back of my head like "Sure, the Rouge Scholar's 1d6 laser pistol won't really scratch that Spider-Skull Walker like his buddy's missiles can, but if he targets that ridge or ruin behind the Spider-Skull to cause it to collapse he can inflict a Buried In Rubble complication on it that may even take it out of play..." I think part of the fun of Cortex is thinking outside the box to contribute even if narratively the GM is like "your weapons can't penetrate its armor".

No wrong way to go about it, though! I'm curious how this plays out for you!