The Dog Tags is an item in Chibi-Robo!. Each of the Free Rangers have these. Private Memphis lost his after being kidnapped by Tao. His are found on the upper ledge in Tao's dog house. Once they are obtained, showing them to the Free Rangers will cause them to gasp. Sarge will come and once he sees them, he realizes that Memphis is still alive. He will cry. Then talking to Sarge again, if four AWOL Free Rangers have been hired as pirates, Sarge will give Chibi-Robo the Tao Suit and allow him to participate in Tao Training.