Visitors can watch Iga ninja stealthily infiltrate Ueno Castle. On the video screen in the Mini Theater, one can watch to see how they infiltrated undetected by anyone, and escaped as well. There, visitors can also learn about the tools ninja used to carry out their strategies, and even try using some of the tools by themselves. There are over 400 ninja tools on display, including shuriken actually used in the time of the ninja.