Sea Bomber [Model X-1079]

シーボンバー © 1983 Hudson Soft.
(Sea Bomber)

In the summer of 205x, aliens from outer space invade the ocean floor of the Pacific Ocean.
On Earth, they were called "negative jellyfish" and were frightened by their negativity.
So, you, who are an excellent frogman (diver), set out to exterminate the black jellyfish. . .
The weapons include a sea bomber (SPACE KEY) and a diver gun (Z KEY).
Sea Bomber explodes when it touches something.
The diver gun is not effective against "negative jellyfish," but it can exterminate jokes (sharks).
The amount of oxygen is 1000, and when it reaches 0000, you die.
You can receive supplies from the boats passing above, so touch the boats.