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Units produced: Irem
Controls/Input Device: Control(joy8way), Buttons(1)
Number of Players: 2
Acting Talent involved:
More Machine Details:
More System Details:
Game Awards Nominations:
Game Awards Won:
IPM Invader VGMuseum Game Endings
IPM Invader on CAESAR
IPM Invader high score and replay at MARP
IPM Invader on datObase
MAME folder name: ipminvad
Display: raster 240x224 @ 61.78Hz (61.78 pixclock)
Sound: 1 channels
Emulated in MAME via driver m10.c:
Status: imperfect; Emulation: good
Graphic: good; Sound: good; Color: imperfect
Palette size: 16; Savestate: unsupported
b10r with 1024kb
b1r with 1024kb
b2r with 1024kb
b3r with 1024kb
b4r with 1024kb
b5r with 1024kb
b6r with 1024kb
b7r with 1024kb
b9r with 1024kb
- 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)
* FB Alpha
Recommended Games (Star Force):
Night Star (DECO Cassette)
Alpha Mission / ASO
Alpha Mission II / ASO II
Astro Warrior (Mega-Tech)
Truxton / Tatsujin
Tatsujin (Tourvision PCE bootleg)
Truxton II / Tatsujin Oh
GunHed (Tourvision PCE bootleg)
The Next Space
Super Star Soldier (Tourvision PCE bootleg)
Strike Gunner S.T.G
Final Star Force
Viper Phase 1
Mars Matrix: Hyper Solid Shooting
Romset: 2016 kb / 8 files / 457.8 zip
Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
IPM Invader (c) 1979 IPM Corp.
- TECHNICAL -
Main CPU : MOS Technology M6502 (@ 2.5 Mhz)
Screen orientation : Vertical
Video resolution : 224 x 240 pixels
Screen refresh : 60.00 Hz
Palette colors : 8
Players : 2
Control : 2-way joystick
Buttons : 1
- TRIVIA -
Released in January 1979. Known as the poor mans version of "Space Invaders".
Irem was founded in 1974 as 'IPM Corp.' in Hakusan, Japan. Like most of their contemporaries, the company's initial purpose was to produce and rent out electronic leisure machinery to various sections of the entertainment industry. With the advent of arcade videogaming and the hugely popular "Space Invaders" (1978), Irem opted to move into the development and manufacturing of their own titles. They rapidly released their own 'invader clone', the aptly named IPM Invader.
IPM Invader was a crude and shameless copycat of Taito's milestone, but yet the sheer popularity of arcade rooms at the time saw the game do well enough to convince the company that games were a viable business opportunity.
In 1979 they changed their corporate name to Irem Corp., an acronym for 'International Rental Electronics Machines'. This would stand until the mid-80s, when it would then be changed to 'Innovations in Recreational Electronic Media'.
For their first few years, Irem's output was average at best. If anything it could almost be considered poor: random invader clones and poorly produced action games disappeared amongst the numerous other titles of the day.
- UPDATES -
It is like "Space Invaders", with identical graphics. It uses a color monitor instead of a black and white monitor with a color overlay.
It has the addition of the famous 'coffee break'. What's the 'coffee break'? The 'coffee break' is a unique feature in IPM Invaders whereas after every 3rd wave or pattern of invaders, the 'coffee break' appears.
Another unique feature in IPM Invader is the 'capsules'. When dip switch settings are changed to advanced settings, the game becomes more difficult with the introduction of the UFO (mystery score ship) dropping 'capsules' that hatch into new invaders. The 'capsules' cannot be destroyed until they hatch, and are dropped across the screen to defeat the players 'narrow column' strategy.
- SCORING -
Large Invader : 10 points
Medium Invader : 20 points
Small Invader : 30 points
UFO : 50 to 300 points
- CONTRIBUTE -
Edit this entry: http://www.arcade-history.com/?&page=detail&id=1200&o=2
Licensed from Alexis Bousiges under a CC Attribution 3.0 License
00000000 0080 00000008 FFFFFFFF Infinite Lives
20800000 1957 00000000 FFFFFFFF Bullet Invincibility
Credit Pugsy's MAME Cheat file