Soul Of The Katana

You control a lone ninja moving through side-scrolling stages. Your basic actions are moving, jumping, and using a few different attack buttons to slash through waves of enemy ninjas. The main goal is to fight your way to the end of each level, clearing out everyone in your path. The pacing is quick, and the difficulty comes from the sheer number of foes you face at once. It feels like a constant, hectic scramble of movement and button presses.