The longer I'm looking at your sample, the more I'm convinced this is not a special font, but the thickness is the side effect of a bad quality rendering on a low resolution device (or bad quality image capture from a low res video sample).
So whatever this is, it's very close to Helvetica Bold or Arial Bold, but some of the glyphs are different. You can see the A, M, K, and S are all a bit different. This was not done on a computer, but probably some other kind of titling system in the analogue days, so a more direct match might not exist?
In the picture, the top (the yellow) is the original, the bottom are my approximations using Helvetica and Arial. Overall, the original looks thicker...
I'm working on restoring these credits, so any help in getting this closer to the original would be, well, helpful. :)
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| cagliostro_opcredits.png | 324.56 KB |