Sgt. Frog Episode 145: Urere, the Salesman Invader / Keroro, And After All Even If Everybody Becomes...
Episode 145 of 358 of Sgt. Frog, aired January 26, 2007, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Tired of how long the invasion is taking, the Kero Army sends Urere, an incredibly effective invader, to take over in one day! But Keroro seems oddly apathetic about Urere`s strategy. And then 556 invites them over to his place, where a murder mystery ensues... Source: crunchyroll