Tottoko Hamtarou no Tottoko Taisetsu!! Koutsuu Rule
Japanese title: とっとこハム太郎のとっとこ大切!! 交通ルール
Type: OVA
Episodes: 1
Source: Manga
Genres: Drama
Duration: 14 min
Rating: G - All Ages

Hamtaro and the Ham-Hams learn how to stay safe on the road in this 14-minute long special produced by the Tokyo Emergency Service.

(Source: Hamatarou Wikia)