Series : Space Invaders Developer : Taito Genre : Fixed shoot 'em up Features : Portrait Mode Display Graphics : Pixel Art Colored Overlay Themes : Alien Invasion Release Info : MiSTer implementation Hardware : Intel 8080 Ports : Space Invaders (1980 A2600) Space Invaders (1985 SG1000) Achievements : retroachievements.org
Scores - FBNeo: 3050 ............ on 2024-09-01 Scores - MAME: 3050 ............ on 2014-06-12 2110 ............ on 2014-05-29 Scores - MiSTer: 2200 ............ on 2023-06-09 Other scores: 1690 ............ on 2024-03-23
As can be seen from these frames from this video and this video, Space Invaders has a vertically oriented monitor which makes scan lines appear vertically, not horizontally. .
The CRT display is mounted facing upwards, reflected towards a semi-transparent mirror, behind which is a plastic cutout of the planetary surface. The reflection of the CRT appears over the cutout, serving as a backdrop. The CRT had colored overlays on the display itself, to add color to the black and white image. Thus, both the colors and background of Space Invaders are non-digital optical effects. Also note that the actual CRT image is mirrored to appear correct in the reflection.
(Photo by dbrainjr on ebay.com)
I adore the little animations where the invader steals and flips the Y in PLAY, and the red invader shooting the extra C in INSERT COIN.
I played with the MiSTer backdrop enabled. I still think it looks weird, but the game looked more or less like this originally.
For a while now, I've been using a custom MiSTer video filter with interpolation and subtle horizontal scanlines. Everything looks great, but I realized that arcade games with vertical monitor orientation should have vertical scanlines, not horizontal ones. I never really looked for this, but confirmed it with YouTube videos of the real arcade hardware. I have now made a corresponding vertical video filter for games like Space Invaders.
Playing the real arcade again at the Musée Mécanique, I noticed my findings about the vertical monitor are indeed correct, and enjoyed the feeling of depth from the parallax effect between the backdrop and the half-mirror showing the computer display. This generation of games seems to carry over a lot of the gimmicks from the electro-mechanical arcade games that preceeded them, making up for the lack of graphical effects output by the arcade displays themselves.
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