The game ran on the Sega Vic Dual arcade system board.
It was the first known brawler, featuring a single opponent fighting against multiple opponents in melee martial arts combat. This predated the first beat 'em up, Kung-Fu Master (1984).
It was also first known hack & slash brawler, pressing a sword button to slash enemies with the samurai player character's katana blade.
It was also the first known action game to feature a boss fight with a boss opponent, predating other arcade games such as Sasuke vs Commander and Phoenix later on in 1980.