March 22, 2013
Keroro feels trapped inside the Hinatas' house and misses being outdoors. Tamama and Fuyuki help him think of ways he can leave the house without drawing too much attention, given that he is an alien. Keroro eventually discovers that the badge on his helmet allows him to temporarily turn invisible. Natsumi suspects that Keroro will use his invisibility device to go out and cause trouble, so she convinces her family to install hidden cameras throughout the house to spy on him. Later, Natsumi accuses Keroro of spying on the family when she discovers a pair of binoculars outside, but the Hinatas survey the security footage to find that Keroro has done nothing out of the ordinary. The true culprit is later revealed to be Giroro, another member of Keroro's platoon.