Run Deep (c) 1988 Cream.
You control one or two boats floating along the high seas. The boats are armed with depth cherges for dropping on the aquatic wildlife and submarines in the depth far below. Homing torpedoes, Polaris missiles, mines, Stingray style vessels and other boat-wrecking hazards make up the threads to avoid or destroy. Bonus capsules which float up to the surface boost the boat's speed, increase depth charge power, give the player temporary invincibility and other normal features but of a marine vein. The depth charges take their time to float to their target so plan ahead using the map, submarines at different heights in the water pose further problems. This game also has good BGs.

>>> TECHNICAL DETAILS
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Main CPU : Z80 (@ 6 Mhz), M65C02 (@ 2 Mhz)
Sound Chips : YM2203 (@ 3 Mhz)
Screen orientation : Vertical
Video resolution : 248 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 512
Players : 2
Control : 8-way joystick
Buttons : 2

>>> TRIVIA
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This game is known in Japan as 'The Deep'.

>>> DESIGNERS / PROGRAMMERS / STAFF
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Produce : Hisayoshi Ichikawa
Script : Shoji Takagi
Program : Shunji Ito, Tomoaki Kasuya, Toshihisa Shiono
Graphic : Shoji Takagi, Tutomu Ozawa, Kazuhiro Iizuka, Kei Tamura
Music : Yoshio Watanabe, Kiyoshi Kusatu

>>> OTHER GAME RESOURCES
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Game's rom.