Lehtola has a long-standing history in martial arts, having practiced for over 25 years. He has achieved two black belts, a 2nd Dan and a 5th Dan. Lehtola has gained experience in multiple styles and a variety of weapons. His fighting methods are a combination of techniques and styles from different martial arts, such as military techniques and old traditional ways. He has invested a lot of time and effort into learning and perfecting his very own style.