Q-taro, a monster, is living with the Ohara family. He can fly and make his body transparent, but he cannot turn his body into other things like other monsters do. He is a scattered mind, and he always makes mistakes and causes trouble. 
(Source: AnimeNfo)

A Japanese manga about an obake, Qtarou; (Sometimes also spelled as Q-tarou) who lives with the Oohara family. Qtarou, also known as Q-chan or Oba-Q, is a mischief-maker who likes to fly around scaring people and stealing food, though he is deathly afraid of dogs. 
(Source: Wikipedia)

New misadventures of the dimwitted ghost Q-Taro. 
(Source: AniDB)

Panda Kopanda (Panda! Go Panda!) is a 30 minute movie made in 1972. Miyazaki created the original idea, the script, the layouts, and did key animation, and Takahata directed the film. The story is about a little girl, Mimiko, who was left alone while her Grandma was away. 
(Source: AniDB)