During the early years of ALCHEMI and Dr Blush's experiments, Dr Blush needed test subjects.
She could not test anything on her people with there being potential risks so she had to find an alternative method.
Animals were one way but it would not always account for all human-related variables.
One option was to use them on willing subjects but with the secretive nature if her organization and research, that limited her more.
Her solution was to test them on criminals and the enemies she or her organization captured.
If they survived the tests, they would have their memories wiped and would be used as loyal footmen of ALCHEMI.
With their mutations, alterations, or powers gained, they would soon become a powerful force that would support ALCHEMI.
The earlier models lacked alien genetic traits since Dr Blush had not yet gone to space.
Some minor races would be covered among those that already visited Earth and those she encountered in her trips through Earth's gates to the Demon Realm.
Mostly animal traits were gained early on and not everyone gained such powerful talents and abilities.
Some animals have powerful senses and instincts.
Others had dermal armor, camouflage, regeneration, night vision, resistance, and so on.
Some who underwent such experiments came out with defects while some successful ones came out as having a percentage of themselves being part animal and part human.
Some gained minor traits like tails and ears with no major body changes.
Others looked like mutants that were mostly humanoid animal races.
To reduce the power levels of Earth, all ALCHEMI members learned to mask their Ki to avoid the detection of people like Babidi.
Everyone could hide their power level so they learned how to find others without Ki Sense and learned how to get creative.
As the small team hid, they did not know that they had been found.
Several figures were blended in with the walls they were handing on.
Others with thermal senses could find them.
They were surrounded before they knew it!