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Depthcharge (older)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Dipswitchs
  9. Roms list
  10. Chips list
  11. Samples list
  12. Categories
  13. History
Download depthcho.zip (0 B)
Snapshot

Game infos

Description Depthcharge (older)
Name depthcho
Manufacturer Gremlin
Year 1977
Runnable yes
System arcade /
Number of players 1P
Added to MAME .074u2
Romset size 0 B
Romset file files
Romset zip 0 B
Language English
Genre Shooter

Parent and clones

Parent depthch : Depthcharge (1977)

Sound infos

Sound_channels 1

Driver infos

Driver status imperfect
Driver emulation good
Driver color good
Driver sound imperfect
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 1
Input buttons
Input coins 1

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 2 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 256 224 60 5156160 328 0 256 262 0 224

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 316-0013.u27 32 690ef530 6c0de3fa87a341cd378fefb8e06bf7918db9a074 user1 0 good no
arcade 316-0014.u28 32 7b7a8492 6ba8d891cc6eb0dd80051377b6b832e8894655e7 user1 20 good no
arcade 316-0022.u51 1024 977b7889 dc1e874c2fd44709117474c5b210d67130ac361f maincpu 0 good no
arcade 316-0023.u52 1024 9244b613 6587035ec22d90194cdc3efaed3571a1ab975e1c maincpu 800 good no
arcade 316-0024.u53 1024 a9f55883 78bfbc76f84657d32eb1b8072186b403729ea614 maincpu 1000 good no
arcade 316-0025.u63 1024 bec75b9c 8abe8b63be892e6abb7a886222b9eab40c5fcda0 maincpu 0 good no
arcade 316-0026.u64 1024 61cc0802 7173920f38188a1d1637cb2cb48e31cdd03a194e maincpu 800 good no
arcade 316-0027.u65 1024 4eecfc70 1a1f6cc5da6df91e9e9016def65184201c3d2672 maincpu 1000 good no
arcade 316-0028.u77 1024 597ae441 8d3af5e64e838a57057d46f97a7b1c1037c1a0cf maincpu 400 good no
arcade 316-0029.u78 1024 53178634 d8c4b70c3ab5144938ca0989300ad68e48391490 maincpu c00 good no
arcade 316-0030.u89 1024 9e2bbb45 be60d7330a160e15a8a822aa791aed3060b3b1db maincpu 400 good no
arcade 316-0031.u90 1024 861ffed1 14e0a6a13726052000477c3586d99486167b8812 maincpu c00 good no
arcade 316-0048.u79 1024 6e700621 2b8db1cbbaf7808d4bf446435bbbbfc4d7761db8 maincpu 1400 good no
arcade 316-0049.u91 1024 dc7eff35 1915e92c09cba5868bd2e73ad395e19ddf47a3de maincpu 1400 good no

Chips list

name tag type clock
8080 maincpu cpu 1933560
Samples samples audio
Speaker mono audio

Samples list

name
longex
shortex
sonar
spray

Categories

History


Arcade Video game published 42 years ago:

Depthcharge (c) 1977 Gremlin.

Depthcharge is a 2-Dimensional shooter. You control your destroyer on the surface of the water while submarines patrol underneath. Your job is to drop depth charges to eliminate these submarines. The submarines aren't defenseless as they launch mines straight up toward your ship.

Depthcharge was one of the early video games. Action was simple. This game also had the ability to retain the highest score (without the initials of course). Although the game is simple in concept, just trying to get enough points was enough to keep you working at it. Good luck on your submarine hunting mission.

- TECHNICAL -

BOARD # 814-0002
Prom stickers : 50-55

Main CPU: Intel 8080 (@ 1.93356 Mhz)
Sound Chips: Discrete circuitry

Screen orientation: Horizontal
Video resolution: 256 x 224 pixels
Screen refresh: 60.00 Hz
Palette colors: 64

Players: 1
Buttons: 4 (LEFT, RIGHT, FIRE LEFT, FIRE RIGHT)

- TRIVIA -

Depthcharge was released during September 1977.

This game is also known as "Sub Hunter" (Taito).

Martin Bedard holds the official record for this game with 4,770 points on November 18, 2007.

- SCORING -

Scoring in this game is pretty simple :
* Submarines will have their score posted on their hull. The submarine scores are from 10 to 90 incrementing in 10's. For example, if you see 40 on the submarine, then that submarine is worth 40 points.
* Generally speaking, the lower in depth the submarine is, the higher the value for the submarine.
* You get 90 seconds on the timer to do as much damage as possible. If you score 500 points or greater, you will get an additional 45 seconds for overtime.
* After you are totally done, you get 30 points for each submarine killed. You do not lose points for losing your ship although it takes about 2 seconds to get a new one.

- TIPS AND TRICKS -

* When you start the game, your destroyer will be in the middle of the water. You will start seeing submarines entering the screen either from the left or right and at varying depths. You have a total of 6 depth charges that can be on the screen at any one time. This means if you fire all 6, then you have to
wait until one detonates on a submarine or the bottom of the sea before you get them back.

* Try to aim your shots to where the submarine will be at. This is, in a sense, ''leading'' the submarine. This is especially important if you are trying to get those submarines at the bottom of the sea.

* Always try to keep at least 2 depth charges in reserve. This is for those submarines that are close to the surface that like to throw mines you cannot avoid.

* Try to keep moving around in your destroyer. If you sit in one place, the submarines can put mines on either side of your ship and prevent you from escaping and adding a destroyer to their kills.

* Don't fire your depth charges too close together on one side. The reason is if a submarine is killed by one of them and the other one is too close, it will also detonate. If you were aiming at another submarine with the second one, then your shot is wasted.

* In addition to the mines themselves being dangerous, your ship can also be sunk by the effects of the mines. Don't sit too close when a mine detonates or you will be at the bottom of the sea.

* If you ''walk'' your shots you have a better chance of getting a good spread and taking out multiple submarines. Kind of like leaving a diagonal string of depth charges the submarines must pass through. Plus, you don't lose your other depth charges to the detonation of ones around them.

* Try to get the 500 required for extra time, it isn't too hard if you play smartly.

- PORTS -

* COMPUTERS:
Noval 760 (1977)
Commodore C64 (1983)
Apple II

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=622&o=2