Crazy Kids: Adventures in Tokyo (partially found anime series; 1976)

Crazy Kids: Adventures in Tokyo (Japanese: クレイジーキッズ：東京の冒険 Kureijīkizzu: Tōkyō no bōken) is an obscure anime that originally aired in syndication in 1976, with 32 of the 12-15 minute episodes broadcasted.

Summary
Three kids, Chakkī, Mashū and Sara live in Tokyo, Japan’s busy capital, with their parents. The three children try their best to have fun and enjoy life to the fullest while their wacky and crazy adventures that gets them into the worst of adventures...

Broadcast and cancellation
While the series did well in the ratings and was considered to be extended for another year, it encountered budget issues during its run, causing the show to be canceled. The film reels to the series and other possessions wound up sold off, while other belongings in the studio were either thrown out in the garbage or destroyed in a kerosene fire. Due to this, a large portion of the anime can be considered lost to some degree.