-Origin-

They are mutants from a terrible scientific mistake.

It happened in 2015. Man thought they had finally found a way to enhance human minds to be able to use 100% of their brain using re purposed radiation and a special neuron gas applied to the subject's brain stem and lower back.

And it worked.

This miracle was the greatest scientific breakthrough in all of human history for now we humans could use telekinesis to lift things, touch things

Kill things.

War soon broke out between the telepathic and the unenhanced countries. It lasted 10 years, and it took its toll. Millions died, and even more didn't have a home. Soon the war was turning in favor against the genetically engineered humans. Their scientists were looking for even more ways to enhance their troops so they can turn the tides of war.

Then, disaster.

It was a stormy July day, when a miscalculation set off cataclysmic explosion that engulfed most of the United States of America. But this was no ordinary explosion. It targeted all non-biological matter and homo-sapient life and destroyed it instantly.

But all the animals were fine. Better than fine actually.

Enhanced.

Mutated.

Powerful.

The animals that were closest to the blast were infused with abilities of fire and stone. The ones in the pressure field took on the powers of wind, flying, and thunder and all the ones that evolved from the shadow of the clouds gained Dark, Poison, Ghost, and Dragon.

-Pokeballs and the bag-

Before the war the non-chemically engineered humans started developing storage devices in which you can hold multiple items in 1/16 of the space previously required. These devices could be shaped to look like anything. A hat, a bag, a fanny pack, whatever the user desired. (haha, not anything you perves.) So if you ever felt like it, you could fit 5 entire bicycles in the size of a shoulder bag, and still have room for a bug-out bag. Not only did it give you amazing carrying capacity, but it also alleviated 95% of all the weight. This was their breakthrough in the shadow of the Chemical break though the others had.

And then, the War.

The only reason they won the war (other than the cataclysmic explosion) was that they could carry massive amounts of supplies and ammo and weapons with very VERY little effort. Their troops were more agile, less fatigued, and a lot more heavily armed.

After the explosion, there were massive amounts of mutated creatures that they had to create something to contain them with. So they came up with the Ball. A capture system that uses a tractor beam version of their storage devices to catch the creatures. The ball shrank down for extra storage and with a push of a button, pops back to normal size. (about the size of your hand). To use all you had to do was twist the ring around the button which activates an impact sensor. Then all you have to do is throw the ball at the creature and have the button nail the creature, which trips off the sensor and activates the beam, which sucks whatever is in the beam's line of fire into the ball.
And, the ball was smart. This device could register different creature's DNA to be stored in that ball's CPU. Once the DNA is stored in the ball, the new creature is "re programed" to obey the owner's commands. But, it comes at a cost. When the ball is ID-ing the new creature, the seal on the ball is vulnerable and could break if the creature is able to fight past it and destroy the seal. But if you hurt them enough or tire them out enough, they will most likely not have enough strength to break the seal.