Wikipedia
Haohmaru
is the protagonist character of the Samurai Shodown series video games and is one of its most known characters alongside Nakoruru. He was introduced in the original Samurai Shodown in 1993 and has since appeared in every title in the series.
The character was based on the famed swordsman, Miyamoto Musashi, a duelist who claimed to have never lost a match. Though he is a swordsman with no loyalties to any lord, Haohmaru has a "samurai spirit" which is often stressed in the series. He is also often accredited to defeating most of the series' villains.