Jeff awoke slowly to a splitting headache, it felt like his brain had been put through a cheese grater and then pureed. In a sense it had, selecting the "non popup" option utilized the emitters ability to scan brainwaves and thought patterns. His brain had been ravaged to subconsciously answer several thousand more questions last night. Once the computer was done with inquiries, it set up the criteria and had thousands of computers work on processing the new reality and so now on top of the questions, Jeff now had two lives to consciously sift through.
Jeff slowly shuffled out of bed and got himself dressed. He was about to leave his room to grab breakfast when his computer beeped. still groggy he headed over to see a popup, "World Alteration Complete, save/undo?" Not thinking, he selected save and another popup said saved, default identity updated.
Too mentally exhausted to bother with trying to remember what he was doing last night he went back to his routine. While in the bathroom brushing his teeth his sister burst in, cleaned her face, applied deodorant, brushed her teeth, and put on makeup in a blur over the course of 10 seconds. Jeff scowled spitting toothpaste into the sink, "Mom told you not to travel with super speed in the house, if you lose traction you'll break your neck and insurance doesn't cover owner-caused super damages."
In a blur she was gone but not before, mocking him with a whiny voice, "uh muh muh me muh muh muh. That isn't how it works and you know it."
Jeff did know it but that didn't stop mom from worrying and trying in vain to enforce the rule... and he loved to poke fun at her. Jeff went back to brushing and as the realization slowly dawned on him his eyes bugged out and he dribbled toothpaste out of his mouth. "Hoowy Cwap!"
Jeff suddenly remembered what he did and can compare the memories of what this world is like... there are a huge number of categories and this isn't anywhere near all inclusive.
Elementalists: people who can conjure and to a degree control an element, being earth, air, fire, water, and light. Usually people naturally excel at one and eventually gain a decent level of skill over another but people usually don't master them all because even with two skills, many effects of the other powers can be mimicked using ingenuity, not to mention how difficult it is.
Temporalist: These people can manipulate time in various ways, this effect allows some interesting effects such as getting 8 hours of sleep in 3 minutes, as well as slowing personal time around you down to the point of letting years pass in a second or two of perceived time. This category branches off abilities that lead to speedsters but the most dangerous gain the ability to travel back in time.
Biologicals: These people mutate once their super powers begin to appear and they take on varying degrees of animal qualities, claws, fangs, wings, fur, horns, feathers, animalistic eyes and whatnot to varying degrees. These mutations may convey animal abilities like flight, speed, strength, better senses, bioluminescence, and more. The mutations are as minor as slightly different eyes allowing pristine vision at night, to being a fully anthropomorphic animal. These effects are permanent once they "come in."
Shifters: These are shapeshifters, their form melds and changes into different things, often animals, sometimes inanimate objects, and very rarely other people. Oddly enough, they cannot maintain an anthropomorphic form. Some Shifters have a single alternate form they can become such as a wolf, others have a category like office furniture,
Most often the super ability effects can only affect the person themselves with few exceptions, temporalists have been rumored to take others back in time with them or to be able to age or youthen the cells that make up a creature. Magical healing would basically be a localized area of cells working fast to close a wound, but in scientific trials, the flow of nutrients immediately becomes an issue and the cells in the area effected die...
Nullifiers and Activators: These are super rare and considered Social powers. Alone in a room, these people can't do anything special. A Nullifier can disable a person's superpower, even permanently with direct contact. Less controlled Nullifiers emit a random aura of power dampening, weakening powers or turning them off at fluctuating distances or on contact. Activators reverse the effects of Nullifiers, and can temporarily supercharge powers of others. It's common for Biologicals to seek out Nullifiers to attempt to keep their human form and Activators are considered dangerous to Biologicals because they can force Biologicals to continue mutating to full a anthropomorphic state, even well after their natural mutation has ended.
Obviously, powers built to effect others are the most scary. There are rumors of families with very powerful and possibly even disturbing powers unlike anything listed here, reanimating the dead rumored to be a Temporalist ability if it exists, Absorbers who steal other's powers for themselves or Gifters who can grant access from one person's abilities to all others, Mentalists who can control you like a puppet if they so wish, Gravitons and Magnitons who can effect if and how an object or creature is effected by gravity or magnetism. Imagine falling off the earth or suddenly realizing you were turned into the worlds most effective lightning rod, horrifying... good thing its just a scary story...