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

“Legend of Space-Sumo, Telekinetic Ninja:  A few short years ago the governments of the world banned together to create a museum dedicated to the world’s war strategists and athletes.  The idea of such a museum came from an immensely, wealthy Oriental man who appeared suddenly and left the scene just as quickly.  It was his millions that got the “Battle Museum” built.

The World curators of the museum, each from a different county, often spoke of the aged dapper Oriental who refused to tell his name.  He vanished into nothingness, and no records, nothing traceable concerning his where bouts could be found.  At his request, a huge red circular monument was placed in the center of the museum.  This magnificent piece of sculpture looked like a planet and was suspended from the ceiling.  It was impossible to miss when on entered the museum.  The oriental has said the large monument was to be called the “Monument of battle.”  The museum’s builders wondered why the globe was so heavy.  The metal felt light to the touch, but it hung by ten cranes of super coils.  Everyone was perplexed about how the old man got it there in the first place, for he insisted on secrecy and allowed no one around when it was hoisted.  The mystery surrounding the monument was consistent with that surrounding the man himself.

Statues and most other forms of memorabilia were all about the “Battle Museum.”  From the battle in the Bible between David and Goliath, the giant warrior David defeated with a simple string and stone; to Muhammad Ali, warriors and athletes were all surround.  On display was Attila the Hun, Hannibal, Emperor Menelik of Ethiopia, Peter the Great and General Douglas MacArthur, and Bruce Lee.

Bob Wong, a cook at a Chinese restaurant, visited the Battle Museum one day and was amazed at its displays.  When it closed, he hid inside to get a better look and gain an understanding of its treasures.  He soon found himself in front of the monument of battle.  Magically, it opened from its middle and a glowing radiance from within it flooded over the young Oriental’s figure.  A voice speaking Chinese said:  “I am Kim Lee, Bringer of the Monument of Battle.  Bob Wong, you have come, Oh great Chinese one.  We have long awaited your arrival to fulfill your destiny.  You have been known to us for ages as Space Sumo, a wrestler and telekinetic Ninja.  You now have the power to lift objects at will without touching them, but by commanding them to rise with your mind.  That is the meaning of telekinetic, creating motion without touching.  You now possess the fighting skills and strategic wisdom of all competitive geniuses.  Their combined knowledge is now yours.  The combined knowledge of all the sages in this museum is now yours to do good with; you shall be the master of competition, whether it is a mere game of chess or a mental fight for life itself.  You are related through the ages to the great philosophers of the past.  We knew you senses would draw you to the monument which is you destiny.  But you must head this warning.  Each month you are to return here in secret to recharge your skills or you’ll be a normal mortal again.  Each month you must return to be washed in the glow of the warriors to remain superhuman.  Remember this now and forever, you will be known as Space Sumo, telekinetic Ninja.”