Acrobat Mission is a vertically scrolling shoot 'em up arcade game released by UPL in 1991, licensed to Taito for manufacture and distribution. It was ported to Nintendo Super Famicom in 1992.
In the year 2100, the Earth's environment is devastated by its inhabitants, who develop their space technology to live on Mars. Before they left, the humans created a Bio-Computer assigned to replenish Earth's ecosystem in hopes of returning to Earth. 50 years after terra-forming parts of Mars, the human colonists were attacked by mysterious, but hostile UFOs. The military leaders among the colonists set up an attack force to defend the colonists using state of the art fighter ships identified as the Icarus. The main operation of attack is called "Acrobat Mission" because it exceeds the technical flying ability of the pilots.
In the arcade version, surviving fighter pilots Jet and Nova are available for the player to choose for the rest of the game, but both were discluded from the Super Famicom port, making the player's pilot anonymous as well as discarding Nova's custom color scheme.
Here however is the story, exactly as it appears at the beginning of the game, with spelling and grammar mistakes preserved:
"AD 2100: HUMANS EXTERMINATED BY THEIR OWN NATURE DISTRUPTION AND ESCAPE TO MARS LEAVING BIO-COMPUTER FOR ENVIRONMENTAL RECUPERATION OF EARTH. ONE DAY HALF A CENTURY AFTER HUMANS ARRIVED, MARS WAS ATTACKED BY STRANGE FLYING OBJECTES. TO FIGHT THESE ENEMIES, THE DIRECTOR-GENERAL OF THE DEFENCE AGENCY ORGANIZED THE TASK FORCE ARMY AND STARTED THE DOG FIGHT WITH INVADERS QUICLY. THE OPERATION WAS CALLED "ACROBAT MISSION" AS IT EXCEEDED THE PILOT'S TECHNICAL LIMIT."
Source: Wikipedia, "Acrobat Mission", available under the CC-BY-SA License.