Your character is a drone!
It is an intelligent machine that has the ability to learn and evolve.
It has a peaceful nature, behaves like a curious child, but it can stand up for itself and protect itself if any danger occurs.
It is careful not to kill, but only to immobilize. If it can slip through unnoticed, it would definitely be its main route.
Research, resource gathering, and development are its chief occupations.
With the ability to level up, your drone obtains a weapon that does not destroy, but immobilizes the rival.
It is possible to level up speed, accuracy, duration of the immobilization, and other characteristics.