Sgt. Frog Episode 140: Keroro Platoon Super Battle Operation: Tax Return / Keroro A Certain Man`s Fight
Episode 140 of 358 of Sgt. Frog, aired December 15, 2006, 25 minutes. Available with English subtitles and dub where released.
Episode summary
The platoon has to spend the remainder of their invasion budget, almost 400 million yen, before the year is up, so they go on a wild, wasteful spending spree that makes Keroro nervous for some reason. Later, Keroro has to do something about his hoarder problem, as he`s got a warehouse full of Gundam models, DVDs, etc, but needs to put everything away in the relatively small confines of his own room. Source: crunchyroll