Sgt. Frog Season 6 Episode 277 Kero Zero: Space Take-Out, Sir! / Kero Zero: The Food Equations, Sir!

Back in the past, when the platoon was still on their way to Earth, Keroro ordered take-out despite the fact that it's forbidden. Hijinks ensue! And then all the members of the platoon are forbidden to use the toilet, with horrifying consequences...