Making it daytime
The Sun is a star in the solar system. It is shown to be a living entity in Dr. Slump series and sometimes oversleeps.
The Birth of Arale
Main article: Volume 1: The Birth of Arale
The Sun is shown at the beginning of Arale-chan's Birth, the anime adaptation of The Birth of Arale!, when Nekotoraman uses a fishing pole to bring it up. It later appears in Arale is Akane!? and The Big-Small Gun! as a non-living entity. In The Time Slipper he is seen at the beginning brushing his teeth and later on dropping into the ocean when it is setting.
Arale on the Loose
Main article: Volume 2: Arale on the Loose
He appears in "Arale Flies the Skies!" A samurai brings it up with a fishing pole in "Arale on the Loose: Part 1", and Arale Norimaki pokes it while playing outside after school in "Arale on the Loose: Part 2", making the night fall. It is shown living again in "The Great Strawberry Panties Caper: Part 2", as it is implied in Senbei Norimaki's plan to see Midori Yamabuki's panties.
Main article: Volume 3: Earth S.O.S.!
He appears in "The Story of Donbe". The Sun is shown hiding when the moon rises in "Kids Gone Wild". The Sun also appears in "Arale's Big Change", and again as a living entity in "Hello, Wonder Island", eating ice cream "Scoundrel in a Skirt!", and in "Citizen Arale".
The Happy Doctor
Main article: Volume 4: The Happy Doctor
Main article: Volume 5: Monsters' Night
He is seen awakening again in "Affairs of the Heart!". It appears when Nekotora-7 makes the day come at the beginning of "The Great Arale-Eye Caper: Part 1", and it is later seen in "The Great Arale-Eye Caper: Part 2" and "Kinoko on the Loose" while it sets, as well as in "Good-bye, Gatchan!"
Dr. Mashirito's Ambition
My Toilet Paper
Main article: Volume 7: My Toilet Paper
He wears a hat and sunglasses in "Witchy Gone Wild", awakening in "Mr. Copy", and drinking a beer in "Goo Ga Senbei". It makes minor appearances in "The Biggest Bye'cha of All: Part Two" and "Stone Age Ho-Yo-Yo".
In "Cinderella, the Musical", the Sun is shown singing, and later awakening in the morning before Cinderella can reach the prince's castle. The Sun appears with a simplified face in "Spluk Spluk Phoo Phoo". Arale breaks the Sun with a single blow to impress The Champ at the end of the chapter "Am I Wicked Strong?!".
Penguin Grand Prix
The Sun is shown tired and about to go to bed in "Discover The Countryside".