Alright, well when I mentioned shapeshifting maybe I used the wrong term but pretty much everyone, or well most of them, seem to have had their bodies changed to become optimal like their bodies are changed into a more prestine shape there is also the fact that from my understanding everyone's power is to some degree the changing of their interal bodies to somehow manifest a supernatural power.
Thus everyone is to some degree changing their "shape" or perhaps being to manifest their powers. For instance, might be wrong on this, my understanding on Alice powers for instance is that she manifests the electricity inside of us to and amplifies it this in turn creates, forcefields, gravitational pull or pushback and so on. While Alexis is able to pull in and out, produce, shape and control metals to a staggering degree she has to be in touch with something to do this. So in short my understanding is that the supernatural powers were all in it's very basic level a power of shapeshifting it's just that it's not done in the common case of shifting one's form completely and instead they are able to control and shift certain aspects to an astounding degree. While the MC is more of a jack of all trade and an expert in changing his physical form completely. But again that was just my thought process while playing the game.
There was also the fact that everyone seemingly runs on a power bank that made it seem like this power is what allows them to change their bodies to manifest their powers since when it's gone they become more like normal humans, unless their horrible mutated, but even then they have supernatural strength, toughness and healingfactors.
