A young boy and his little sister are playing Super Mario Bros. 3 on their Famicom, when their mother calls and tells them to come to her shop, however, by the time she is finished at work some time has gone by and the young boy is still playing Super Mario Bros. 3. His little sister gets impatient and leaves without him. She is too young to know where the shop is and she gets lost. The boy then runs off to look for his lost sister and almost gets hit by a driver, which was Mario. He gets out and gives him a small lecture on being safe when crossing the road.
(Source: Super Mario Wiki)
Super Mario no Koutsuu Anzen is a Toei produced public service announcement released in 1989 based on Super Mario Bros. 3 for use in schools across Japan. The video was released on two formats; both VHS and 16mm film. Super Mario no Koutsuu Anzen is still used across Japanese schools today. Very little is known about the video, and its release status is a mystery. To date, the entire film has never shown up online. The film can still be rented from select Japanese libraries in 16mm format. They were never sold to the general public, and only to Japanese schools.
(Source: Super Mario Wiki)
