“Art is Explosion,” said Taro Okamoto, the leading abstract and avant-garde
artist of the Shyowa era, when asked a question: “What is Art to you?”
The most famous of his works is, no doubt, Tower of the Sun.
Tower of the Sun figured prominently in Expo '70.
It has three faces, each representing the past, present, and future of mankind.
Back then, critics found it so aberrant from acknowledged forms of conventional art,
that they made it the butt of their acrid diatribes.
Thus Taro Okamoto had to clarify the Tower's true significance, saying,

“Tower of the Sun is an antithesis to modern society, where humanity has lapsed into moral degradation as it progressed in modernization and industrialization.
Of the true spirit of his words Bandai is well aware, and they have super-robotized Tower of the Sun!
Obviously, it's an antithesis to the modern toy industry.
How could it be otherwise, since no one ever had such audacity and ingenuity