You start the game with three submarines.
Guide your submarine with the mouse pointer. Press the mouse button
to fire a torpedo upward toward the surface. Press the keyboard
space bar to fire a torpedo to the right. Since it takes your
crew some time to reload the torpedo tubes, you are allowed a
maximum of one torpedo at a time in each direction.
As the submarine captain, you must destroy
all ten of the merchant ships in the top row before you can move
on to your next mission. Try not to torpedo hospital ships. It's
a violation of international law--and the consequences can be
pretty immediate. Skillful maneuvering will be necessary on advanced
missions in order to survive exploding depth charges, hostile
torpedo fire, and magnetic mines.
Your sub has a limited supply of fuel and
torpedoes, and must be resupplied frequently. A supply sub will
pass by occasionally near the ocean bottom and release a trained
dolphin carrying fuel and torpedoes. By making contact with the
dolphin's supply pack, you can resupply your vessel. Whatever
you do, don't torpedo the dolphin! He has many friends
in these waters, and they won't take too kindly to it.
