Just a year prior, Nekketsu Kouha Kunio kun
and Double Dragon
began to change the beat-em-up landscape by taking things off of a single plane, allowing characters to move up and down on the screen. However these sorts of trends usually take time to catch on, and games take time to develop. So The Ninja Warriors follows in the footsteps of the genre's grandfather Spartan X
, and remains on "the belt". And if not for the the previously mentioned titles, the advancements that The Ninja Warriors introduced may well have made it as significant to the genre.