game
icon
title Strike Force (rev 1 02/25/91)
set name strkforc
manufacturer Midway
year 1991
genre Shooter / Flying (hof)
category Shooter / Flying (hof)
driver status good
driver source midyunit.c
snapshots PS: in game | title / MW: in game / CT: in game | title / EJ: in game / artwork: cabinet | marquee
zoom
rating

69.9% after 30 votes
 
display
colour emulation good
palette 256
display type raster
orientation horizontal
resolution 399x253
frequency 54.815170Hz
sound
sound emulation good
channels mono
controls
players 2
nplayers 2P sim
controls 8 way joystick
buttons 3
coin slots 4
hardware
cpu TMS34010 @ 48MHz
cpu M6809E @ 8MHz
audio YM2151 @ 3.579545MHz
audio DAC
audio HC-55516
data
version added .034b07
last change(s) none since version .53
roms
name size crc set flags sha1
sfu4.bin  65536  8f747312  strkforc    729929c209741e72eb83b407cf95d7709ec1b5ae 
sfu19.bin  65536  afb29926  strkforc    ad904c0968a90b8187cc87d6c171fbc021d2f66f 
sfu20.bin  65536  1bc9b746  strkforc    a5ad40ce7f228f30c21c5a7bdc2893c2a7fe7f58 
sfu105.bin  131072  7895e0e3  strkforc    fa471af9e673a82713a590f463f87a4c59e3d5d8 
sfu89.bin  131072  26114d9e  strkforc    79906966859f0ae0884b956e7d520e3cff78fab7 
sfu111.bin  131072  878efc80  strkforc    94448002faff5839beab5466e5a41195869face3 
sfu112.bin  131072  93394399  strkforc    67ad5c27c3c82fa6055032df98c365c56c7f8b1b 
sfu113.bin  131072  9565a79b  strkforc    ebb90132ed8acbbed09bbcdff435cdf60a3ef8ab 
sfu114.bin  131072  b71152da  strkforc    784e229a5ae51776a3e984f22d1d73b2286cfc68 
sfu106.bin  131072  a394d4cf  strkforc    d08c5994b08dafd233a270d24b4c851bcedf5cbe 
sfu107.bin  131072  edef1419  strkforc    cda8de55355eabf8146a243f917f6d27babe5ce3 
sfu95.bin  131072  519cb2b4  strkforc    9059d2ca2705bd297c066a9470b756aecb395431 
sfu96.bin  131072  61214796  strkforc    bad32ef909f714289ee7cf2a5179a3b96678a72a 
sfu97.bin  131072  eb5dee5f  strkforc    9432140b4c983472fdc41f36390ee4db67896475 
sfu98.bin  131072  c5c079e7  strkforc    3cbd56db7d0eeaa6fb4f1cc8793cd1deff4e3c2c 
sfu90.bin  131072  607bcdc0  strkforc    f174a549ade75df2f86142150a1e4c3554907602 
sfu91.bin  131072  da02547e  strkforc    d29c071bd9deab2414ac0733d9a18fcf8c68b4d9 
cabinet art
cabinet strkforc.png
marquee strkforc.png
control panel strkforc.png
flyer strkforc.png
additional information
info 0.34b7 [Alex Pasadyn, Zsolt Vasvari, Kurt Mahan]

Bugs:
  • In the test menu the RGB screens flicker on the upper side. RansAckeR (ID 00275)
WIP:
  • 0.122u6: Changed TMS34010 CPU1 clock speed to 48MHz and M6809E CPU2 to 8MHz.
  • 0.122u4: Replaced M6809 CPU with M6809E. Changed YM2151 clock speed to 3579545 Hz.
  • 0.114u1: Changed TMS34010 CPU clock speed to 6MHz, visible area to 399x253 and VSync to 27.407585 Hz.
  • 0.37b5: Changed visible area to 400x255 and palettesize from 65536 to 256 colors.
  • 0.36b16: Added Custom sound and changed VSync to 53.204948 Hz.
  • 0.36b4: Changed VSync to 57 Hz.
  • 0.35b2: Replaced the 3x DAC sound with HC55516 and 1x DAC.
  • 0.34b7: Alex Pasadyn and Zsolt Vasvari added Strike Force (Midway 1991).
PLAY INSTRUCTIONS:
  • The Saurian invasion must be stopped! Only you, Strikeforce, can stop them.
  • Your Mission: Destroy apocalypse the Saurian magastar.
  • First you must eliminate the invaders.
  • Deploy your troops to rescue colonists and capture weapons. Stockpile weapons to blast the apocalypse.
  • Study the enemy, then attack fast, hard and without mercy. The universe depends on you STRIKE FORCE.
LEVELS: 23

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Romset: 1984 kb / 17 files / 0.99 zip
history Strikeforce (c) 1991 Midway.


Saurian lizard men have overrun all twenty-two planets that form the New Earth Solar System colonies, capturing and mutating the resident human colonies into reptiles to use as slave labour at their stronghold base, the Saurian Mega-Star Apocalypse


In the 3rd game in Midway's seminal "Defender" series, Strikeforce again has the player flying a spaceship over the surface of a series of two-way, horizontally scrolling planets, destroying enemy waves and rescuing humans from the alien invaders; with rescued humans hanging from the underside of the player's ship. Once these tasks have been completed, the mothership arrives to pick up the player's ship, together with any humans they have rescued. Players can decide which planets to attack, when to purchase additional firepower and when to attack the Apocalypse.


Strikeforce's graphics differ from the minimalist, stylish appearance of the first two games in the series; with full colour sprites, multi-layer scrolling and colourful, visceral explosions giving the game its own distinctive look and feel.


- TECHNICAL -


Midway Y Unit hardware


Main CPU : TMS34010 (@ 6.25 Mhz)

Sound CPU : M6809 (@ 2 Mhz)

Sound Chips : YM2151 (@ 3.57958 Mhz), DAC (@ 3.57958 Mhz), HC55516 (@ 3.57958 Mhz)


Screen orientation : Horizontal

Video resolution : 400 x 255 pixels

Screen refresh : 53.20 Hz

Palette colors : 256


Players : 2

Control : 8-way joystick

Buttons : 3


- TRIVIA -


Released in February 1991.


If you look at the Today's Victors part of the high score screen, you should see the initials DEF for rank 5, END in rank 6, and ER in rank 7; they spell out the word, 'DEFENDER' (as in the game, "Defender").


- TIPS AND TRICKS -


* To reach the ultimate bad guy without having to go through the entire enemy starship, you just play the LEFT player, and get yourself killed at the far LEFT end of the starship (the very beginning). When you reincarnate, you'll be at the far RIGHT end of the board, past the wall (or IN the wall if you weren't far enough left). The boss will not appear until you move to the left past where he should be (though things will start firing at you immediately). Kill the boss, get your free credit, start again. ;)


* Strategy Tip : kill dreadnaughts with one timewarp and one cluster bomb. You always get the time warp back, plus other goodies.


* Score Hogging Tip : clear out all the planets but one, and then fly around from starbase to starbase waiting for dreadnaughts to appear. Pick 'em off using the above method. This gets boring after a while, of course...


- SERIES -
  1. Defender (1980)
  2. Stargate (1981)
  3. Strikeforce (1991)
  4. Defender 2000 (1996, Atari Jaguar)
  5. - STAFF -
    • Programmers : Todd Allen (TRA), Eric Pribyl (ELP)
    • Artists : John Vogel (JCV), Jim Gentile (JPG)
    • Music and Sounds : Chris Granner (C G), Rich Karstens (R K)
    • Staff : Sheridan Oursler (S O), Mark Penacho (MDP), Tim Coman (TIM), John Tobias (JON), Jack E. Haeger (JEH), Eugene Jarvis (EPJ), Ray Czajka (RAY), George N. Petro (GNP), (BUN), (LOF), Al Lasko (A L), Cary Mednick (CMM), Steve Ritchie (SSR), Larry DeMar (LED), Mark Turmell (M T), (MTN), (NLN), (JTK)
    • - SOURCES -
    • Game's rom.
    • Machine's picture.
    • Edit this entry at Arcade-History.com: http://www.arcade-history.com/?n=strikeforce&page=detail&id=2684&o=2
resource links view in MAWS
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view in arcade-history.com
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view in Games Database
view in KLOV
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view in The Arcade Flyer Archive
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