Sgt. Frog Season 7 Episode 323 Keroro: Enter the Space Home Alone Boss, Sir! / Natsumi's Combat Cameraman Training, Sir!

When Keroro's left home, he appreciates it at first, but then finds that having the run of the Hinata house isn't all it's cracked up to be. Later, when Natsumi borrows a Kero Ball to use as a video camera for a contest, she soon finds herself in the middle of a dangerous combat cameraman training simulation... inside the ball itself.