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Strike Force (rev 1 02/25/91)


Strike Force (rev 1 02/25/91)

| 1991

Release type:
Developer: Midway
Controls/Input Device: Control(joy8way), Buttons(3)
Number of Players: 2
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License from/Copyright:
SoundMix: Stereo
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Acting Talent involved:
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Mameinfo.dat entry:
0.37b10 [Yochizo]


- 0.147u2: hap fixed clone Omega Fighter Special. The game fails to boot or finish post. After showing bad rom errors, the game resets.

- 0.147u1: Fixed maincpu rom loading.

- 0.122u7: Fixed gfx1/2/3/4/5 rom loading.

- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.

- 0.37b10: Yochizo added 'Omega Fighter' (UPL 1989) and clone Omega Fighter Special.

- 21st November 2000: Yochizo fixed some graphics bugs in the Omega Fighter / Atomic Robo-kid driver.

- 8th November 2000: Yochizo sent in a driver for Omega Fighter and Atomic Robo-kid.

- 25th April 1999: Dumped Omega Fighter Special.

LEVELS: 8 (restarts once)

Other Emulators:

* FB Alpha


* Raine

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Romset: 2016 kb / 8 files / 457.8 zip

Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
History.dat entry:
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.


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


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").


* 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...


1. Defender (1980)
2. Stargate (1981)
3. Strikeforce (1991)
4. Defender 2000 (1996, Atari Jaguar)


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)


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Licensed from Alexis Bousiges under a CC Attribution 3.0 License
cheat.dat entry:
00000000 219142 00000003 FFFFFFFF Infinite Lives PL1
00000000 21916D 0000000A FFFFFFFF Infinite weapons PL1
00000000 21919E 00000003 FFFFFFFF Infinite Lives PL2
00000000 2191C9 0000000A FFFFFFFF Infinite weapons PL2

Credit Pugsy's MAME Cheat file

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