In the year 2100, the Earth's environment is devastated by its inhabitants, who develop their space technologyto 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 pilotsJet and Nova are available for the player to choose for the rest of the game, but both were removed from the Super Famicom version, making the player's pilot anonymous as well as discarding Nova's custom color scheme. At the end of the arcade version, after destroying the enemy fortress, various images of the Earth's past are shown, such as the pollution caused by humanity, and the planet itself, flashing before the pilot's eyes. 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."
Gameplay
Players started the game equipped with the default weapon, the Standard Shot: a semi-automatic laser weapon. Though moderately powerful, the Standard Shot cannot be upgraded or charged. Once the player has lost a significant number of lives and their selected weapon his lost its upgrades, the Standard Shot will once again take over. Two other weapons are selectable to the player, one of which is the Wave Shot. The Wave Shot is a spread shot that increases in size, numbers and strength. When charged, the Wave Shot can unleash a short range, but powerful laser blast that increases in width and strength when Wave icons are collected. The other weapon was the Hurricane Shot, a unique area-effect weapon that encircles the ship clockwise when fired before flying forward. When charged, the Hurricane Shot fires a ball of energy across the screen, but there is a one-second delay every time the shot is fired. The player also had Bombs although unlike many shooters, the player can only hold up to two bombs. Once collected however, the two bombs get physically mounted under the ship's wings. If an enemy shot hits one of the bombs, then the bomb will detonate, creating a destructive shield for the player. The player can manually detonate either bomb at will. The player's Icarus fighter ship has a number of defenses at its disposal as well. Whenever the player moves their ship in any given direction, a burst of flame from the ship's jet exhaust will shoot out from the opposite direction the player moves the ship in. This applies to all directions: left, right, front, back and all four diagonal angles. This jet exhaust not only serves an aesthetic purpose, but it can also harm nearby enemies and destroy nearby objects. Whenever the player is hit, their ship will steer wildly out of control. Once this happens, a timer will appear near the ship which indicates how long the ship has until it explodes. The explosion of the player's ship will harm any nearby enemies. Also, because the Icarus is apparently well built, any kamikaze enemies or drifting objects that touch it will not damage or destroy the player's ship, allowing the player less restrictive movement.
Pilot selection between Jet or Nova was omitted from the beginning of the game.
The graphics were also downgraded a bit during the port as the SFC version processed certain effects slower.
The mechanical enemy fortress as well as some of the enemies and bosses were re-colored while the final boss saw a partial redesign.
The effectiveness of the weapons were downgraded somewhat as the Hurricane weapon is faulty even when fully powered up in the SFC version; when fully powered up in the Arcade version, the charge weapons took up 75% of the screen.
The sound effects were almost completely replaced in the SFC port, such as the voice in the arcade version saying the name of the weapon the player picks up.
The original ending was completely removed from the SFC version and replaced with a simple screen of scrolling text, which congratulates the player and includes a new ending song that was not present in the arcade version. However, even though the original ending sequence was removed, the original ending music is still present and can be accessed in the sound test.
Reception
In Japan, Game Machine listed Acrobat Mission on their September 1, 1991 issue as being the fourteenth most-successful table arcade unit of the year.
Record
Antonio R. Filho holds the official world record for this game with a maximum 279.900 points.
