Sgt. Frog Episode 60: Honey, I Shrunk the Frogs!
Episode 60 of 358 of Sgt. Frog, aired May 27, 2005, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Keroro challenges Natsumi to a race... in cars made out of slippers, cake, and vaccuum cleaners! Loser has to do a week`s worth of laundry, cleaning, and dishes. Both are determined to win! Source: crunchyroll