Enemy ninja attack your dojo! Fight back and defeat as many of the enemy ninja as you can... they seem to be coming in non-stop! Get high scores!
Your dojo is under your protection. Its belonged to your ninja clan for generations. All sort of ninja will come by and try to sully your dojos name: rival dojo ninja, dojoyaburi, ninja with bounties on their head, ninja who want to collect bounties on your head, missing/rogue ninja, and even samurai.