In year XXXX earth was enormously changed,
Arctic ice was melt down because
earth’s temperature was increasing
and some volcanoes appeared under the sea
that cause about 90% of the earth changed into water.
 
  
 
 
All continents turn into many islands that make
Marine Technology progresses quickly.
Ten years after Chaos Empire was born
and their objective is to rule the earth.
 
 
 
But Earth Federation is developing a special
submarine for this war.
 
Its code name is “BS-7001A Metal Fin” that has
a dexterous movement and adjustability to many forms.
 
But it is a prototype model that some parts are developing and
the war has just begun. You must get out from the base
to protect the earth without additional parts.
Don’t worry; they may be put in your ship soon.
 
You have only one objective to destroy all Chaos Empire ships
and bases. Future of the earth depends on YOU!!
