Leapfrog Clickstart Educational Software: Backyardigans: Number Pie Samurai Join your friends the Backyardigans as they cook up a ninja-versus-samurai adventure! Ninja-kick flying number pies to get to the Great Pie. Foil the ninjas plot by matching musical instruments. Help the Backyardigans dance to all the songs you've made. Teaches numbers, counting, instrument sounds, musical exploration and computer skills such as mousing.