Ninja Karate Defense is a karate game in which you must defend the master from dangerous ninja attacks.
You assume the role of John, trained by one of the best teachers in the world. The goal is to defend your master from the trained ninjas who want to kill him. The character does not move on the screen, so you only need to hit with your hands and feet.
The stage doesn't change and while the movements of the ninjas and the main character are a bit odd, they don't affect the gameplay.
The user has to press the right side of the device's screen to throw the chops.