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Strike Force (rev 1 02/25/91)

  1. Game infos
  2. Sound
  3. Driver
  4. Inputs
  5. Controls
  6. Display
  7. Dipswitchs
  8. Roms list
  9. Chips list
  10. Serie
  11. Categories
  12. MAMEinfo
  13. History
  14. High scores
Download strkforc.zip (1.94 MB)
Snapshot

Game infos

Description Strike Force (rev 1 02/25/91)
Name strkforc
Manufacturer Midway
Year 1991
Runnable yes
System arcade /
Number of players 2P sim
Added to MAME .034b07
Romset size 1.94 MB
Romset file 17 files
Romset zip 980 B
Language English
Evaluation 90 to 100 (Best Games)
Genre Shooter

Sound infos

Sound_channels 1

Driver infos

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

Inputs infos

Input service no
Input tilt yes
Input players 2
Input buttons
Input coins 4

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 410 256 54.70684 8000000 506 90 500 289 20 276

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade sfu105.bin 131072 7895e0e3 fa471af9e673a82713a590f463f87a4c59e3d5d8 user1 c0000 good no
arcade sfu106.bin 131072 a394d4cf d08c5994b08dafd233a270d24b4c851bcedf5cbe gfx1 80000 good no
arcade sfu107.bin 131072 edef1419 cda8de55355eabf8146a243f917f6d27babe5ce3 gfx1 a0000 good no
arcade sfu111.bin 131072 878efc80 94448002faff5839beab5466e5a41195869face3 gfx1 0 good no
arcade sfu112.bin 131072 93394399 67ad5c27c3c82fa6055032df98c365c56c7f8b1b gfx1 20000 good no
arcade sfu113.bin 131072 9565a79b ebb90132ed8acbbed09bbcdff435cdf60a3ef8ab gfx1 40000 good no
arcade sfu114.bin 131072 b71152da 784e229a5ae51776a3e984f22d1d73b2286cfc68 gfx1 60000 good no
arcade sfu19.bin 65536 afb29926 ad904c0968a90b8187cc87d6c171fbc021d2f66f cvsd:cpu 30000 good no
arcade sfu20.bin 65536 1bc9b746 a5ad40ce7f228f30c21c5a7bdc2893c2a7fe7f58 cvsd:cpu 50000 good no
arcade sfu4.bin 65536 8f747312 729929c209741e72eb83b407cf95d7709ec1b5ae cvsd:cpu 10000 good no
arcade sfu89.bin 131072 26114d9e 79906966859f0ae0884b956e7d520e3cff78fab7 user1 c0001 good no
arcade sfu90.bin 131072 607bcdc0 f174a549ade75df2f86142150a1e4c3554907602 gfx1 280000 good no
arcade sfu91.bin 131072 da02547e d29c071bd9deab2414ac0733d9a18fcf8c68b4d9 gfx1 2a0000 good no
arcade sfu95.bin 131072 519cb2b4 9059d2ca2705bd297c066a9470b756aecb395431 gfx1 200000 good no
arcade sfu96.bin 131072 61214796 bad32ef909f714289ee7cf2a5179a3b96678a72a gfx1 220000 good no
arcade sfu97.bin 131072 eb5dee5f 9432140b4c983472fdc41f36390ee4db67896475 gfx1 240000 good no
arcade sfu98.bin 131072 c5c079e7 3cbd56db7d0eeaa6fb4f1cc8793cd1deff4e3c2c gfx1 260000 good no

Chips list

name tag type clock
HC-55516 cvsd:cvsd audio
M6809E cvsd:cpu cpu 8000000
MC1408 cvsd:dac audio
Speaker speaker audio
TMS34010 maincpu cpu 48000000
Williams CVSD Sound Board cvsd audio
YM2151 cvsd:ym2151 audio 3579545

Serie

Serie : Defender
  1. Defense Command (Defender bootleg) (1980)
  2. Defender (Red label) (1980)
  3. Defender (Blue label) (1980)
  4. Defender (Green label) (1980)
  5. T.T. Defender (1980)
  6. Defender (White label) (1980)
  7. Defender (bootleg) (1980)
  8. Tornado (set 1, Defender bootleg) (1980)
  9. Tornado (set 2, Defender bootleg) (1980)
  10. Zero (set 1, Defender bootleg) (1980)
  11. Zero (set 2, Defender bootleg) (1980)
  12. Defence Command (Defender bootleg) (1981)
  13. Stargate (1981)
  14. Star Trek (Defender bootleg) (1981)
  15. Defender (1982)
  16. Defender (1982)
  17. Defender (1982)
  18. Defender (1982)
  19. Defender (1982)
  20. Defender v1.0 (Deleted) (1982)
  21. Defender (clean crack) (1983)
  22. Defender (1983)
  23. Defender (1983)
  24. Defender (1983)
  25. Defender (1983)
  26. Defender (1983)
  27. Defender (1983)
  28. Stargate (1984)
  29. Stargate (Prototype) (1984)
  30. Stargate (Prototype) (1984)
  31. Zerosen (1984)
  32. Defender (Ger) [CPC Schneider International] (1986)
  33. Star Gate (Jpn) (1987)
  34. Strike Force (1987)
  35. The 4th Unit 4 - Zero (1989)
  36. Zero - The 4th Unit Act. 4 (1989)
  37. Zero - The 4th Unit Act. 4 (Jpn) (1990)
  38. Zero - The 4th Unit Act. 4 (1990)
  39. Zero - The 4th Unit Act 4 (1990)
  40. Strike Force (rev 1 02/25/91) (1991)
  41. Stargate (Euro, USA) (1994)
  42. Stargate (World) (1994)
  43. Stargate (Euro, USA) (1994)
  44. Zero the Kamikaze Squirrel (Euro) (1994)
  45. Zero the Kamikaze Squirrel (Euro, Rev. A) (1994)
  46. Stargate (Euro) (1995)
  47. Defender 2000 (1996)
  48. DEFENCE (19??)
  49. Defender (MR R) (19??)
  50. Defender II: Stargate (19??)
  51. Defender (Euro) (2002)

Categories

MAMEinfo

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:

- 0.182: Replaced '8-Bit R-2R DAC' sound with MC1408.

- 0.145u7: Added 'Williams CVSD Sound Board' sound.

- 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.

- 0.34b8: Changed description to 'Strike Force (rev 1 02/25/91)'.

- 0.34b7: Alex Pasadyn, Zsolt Vasvari and Kurt Mahan 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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4 Fun in 1 (Scramble)

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A. D. 2083

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SF-X

Brain

Darius

Darius II

Darius Gaiden - Silver Hawk

Darius Gaiden - Silver Hawk Extra Version

Terra Force

Alpha One

Back Fire

Thunder Cross

Thunder Cross II

Barunba (Tourvision PCE bootleg)

Gigandes

Mega Blast

Air Buster: Trouble Specialty Raid Unit

Aero Blasters (Tourvision PCE bootleg)

Arrow Flash (Mega-Tech)

Bio-ship Paladin

Down Load (Tourvision PCE bootleg)

Paranoia

Thunder Force AC

Thunder Force II MD (Mega-Tech)

Cosmic Cop

Dead Moon (Tourvision PCE bootleg)

E.D.F. : Earth Defense Force

Metal Black

Strike Force

Xexex

Last Resort

Blazing Star

History


Arcade Video game published 28 years ago:

Strikeforce (c) 1991 Midway.

Strike Force is a side-scrolling shoot-em-up and is the third game in Midway's seminal "Defender" series. Saurian lizard men have overrun all twenty-two planets that form the New Earth Solar System colonies, capturing and mutating the resident humans into reptiles to use as slave labour at their stronghold base, the Saurian 'Mega-Star Apocalypse'.

Players fly a spaceship over the surface of the of 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.

Strike Force adds several new features to the series. Two players can now share the screen at one time and the surface of each planet is littered with various special weapons that can be picked up and deployed. Humans can be 'mutated' into small green creatures that will fight against the player (although players can still pick them up for points as, with the unmutated humans). The mutants can also use vehicles found on the planet's surface against the player.

- TECHNICAL -

Midway Y Unit hardware

Main CPU : TMS34010 (@ 6.25 Mhz)
Sound CPU : Motorola M6809 (@ 2 Mhz)
Sound Chips : Yamaha YM2151 (@ 3.57958 Mhz), DAC, HC55516 (@ 3.57958 Mhz)

Players: 2
Control: 8-way joystick
Buttons: 3

- TRIVIA -

Strikeforce was 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)

- 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)

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=2684&o=2

High scores

MAMESCORE records : 02/04/2017 13:01

fordie_________________________74.525
dark_kariya____________________36.450
hulkiii________________________31.950