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.
Skilful manoeuvring 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.
