This is what is written in the "Rulers of the Sun" booklet Written by Michael Brown that came with one of the figures:

The Legend of Sun-Man:  In Ancient Egypt, thousands of years before Christ, the ruler of the Sun observed that the rich House of Dynus in the Land of the Sun, was fair and kind to its many land workers who built the great pyramids.  Their kindness was known throughout the land.  Prince Sunni Ali, eldest son in the Dynus kingdom, ruled with dignity and intelligence.  This made the Ruler of the Sun very happy. And so, he adopted Sunni Ali as his very own son.

But evil lurked in the Land of the Sun, in the form of Zegor.  Zegor was the rich and villainous Prince of the House of Shadus.  He was known throughout the land as the devious and spiteful lord who spread despair among his workers.  He used his wealth to build torturous chambers in which to punish those who did not obey him.  The workers who remained of purest souls fled, to live among the House of Dynus.  Once a man of handsome features, Zegor was transformed, by the Ruler of the Sun, into a hideous creature – half-man/half-hog and was forever to be called “Pig-Head.”

One night, while Sunni Ali slept, a beautiful fairy appeared in his dreams.  She wore a shimmering blue gown, and tiny flecks of diamonds were sprinkled throughout her tightly woven hair.  A lovely voice came from her tiny mouth, “The great ruler of the Sun is pleased with the beauty you have spread.  For this he has made you his son, and you will forever be called “Sun-Man.”  You, and all the Sun-People, will be granted immortality.  You shall live in happiness, forever.”

Just then she brought forth a mighty sword.  And in the reflection of its blade was the image of a beautiful floating city nestled in the center of the sun.  Suddenly, her soft voice became the booming chords of the great Ruler of the Sun, and he spoke to his chosen son.  “The sun is the most glorious force in the universe.  And I am its creator.  You, Prince of the House of Dynus, have been righteous and good to those who have toiled your land.  For this I shall make you my son, and you shall be immortal.  You shall live on land I have carved from the earth, and it shall be placed within the sun.  None of the sun’s fiery force shall ever harm you or the Sun-People . . . for within its warmth there is a glorious paradise.  But . . . all those who use the sun to light their evilness, shall fell its furnace.”  A great hand appeared, and in it was the mighty sword.  Swiftly the sword sliced away at an image of the earth. 

“You have ruled justly.  Your fairness will be needed for mankind in the days of wickedness to come.  Beware of Pig-Head, for he is a mean and angry creature.  He lives with one burning desire – to bring dishonor and shame to all those who live among him.  He has trained his demons to follow his evil plan.  He and his followers will always lurk beneath the sun and never shall they dwell in the land of paradise.”

The great Ruler presented Sun-Man with the might sword.  “Whenever you are in need of guidance, reflect our thoughts into the mirrored glow of this blade.  The lovely Shimmering Fairy Hexotica – sister of the great Ruler – will appear to provide the strength you need to rule amongst the evil forces that will always roam the earth.”   He granted Sun-Man, whose bronzed body was masterwork of sculptured nature, the power to fly at light speed.  The great golden wings of the immoral bird Phoenix allow Sun-Man to travel in and out of the sun.  His sin was made invulnerable so that no wickedness might harm him.  Many special powers were bestowed upon him, allowing him to fight for goodness without fear.  Pig-Head was banished into the dungeons of Hades, where he forever tries to harness the sun’s beautiful rays and use its power for his evil doings.

Sun-Man and the Sun-People continue to fight for fairness and righteousness throughout the universe.  Disguised as Sonny Smith, Chief Executive Officer of Gallium Enterprises, Sun-Man lives among us, protecting us, always spreading the beauty of the sun and facing new adventures.