Hi, this is my first topic here.
I plan to do some big tutorial about this complex topic in the future, but I just need to get some advice about it at the moment, in order to finish some projects. If you prefer me to write my posts in french, I can try out, as I actually know the language, but don't feel very confident because I don't use it very often.
I've already made a restoration for this site: the game Ninja JaJaMaru-kun, so check it out if you are interested in it! But, unfortunately, there's a big problem with Famicom games: a perfect restoration is
IMPOSSIBLE. Let me explain this:
1. Most of their illustrations are hand-made drawings, watercolours, or just photos taken from real objects (such is the case of Ganbare Goemon).
This means that a vectorization isn't viable at all.
2.They often use texturized backgrounds: sometimes it will be easy to recreate them, sometimes it will be impossible.
3.There's few HQ resources out there: logos and others have to be made from scratch. That means extra work!
4.The last and most important point: they used a crazy number of different fonts in a same box. Japanese fonts are hard to identify, and a lot of them don't exist as digital fonts. Yes, that means that you will never be able to find the original font thas was used in the box
That said, we can get into the dilemma: Restoration and conservationism or recreation and not exact matches?
I think that this has to be discussed here in order to establish a route for future restorations.
Let's see an example, so we all can see what I mean:
SYSTEM: Famicom
GAME TITLE: Galaxian
YEAR: 1984
COMPANY: NAMCOT
I'd love to restore all of the Namcot small box games that were launched between 1984 and 1986, but I just have 5 of them right now. If someone can provide some scans, let me know. That apart, let's examine one of the texts written in the front.

It says ギャラクシアン (Galaxian). Well, I made a post at WhaTheFont forums asking for some help, and a experienced user called Akira1975 identified it as 石井太ゴシック体 (Ishii Futo Gothic-tai) by 写研 (Shaken).
As I previously said, this is a pre-digital font whose font family dates back to 1932, and that means that no font file exists. Back in the day, they used specialized machines that came with certain fonts integrated, like this one, and nowadays, we don't have access to those fonts. The digital successors to these fonts are Yu Gothic and Kobari no Gothic, that are pretty similar but not the same. (Source:
http://saikirin.com/ishiigochic/)
Thanks to
http://en.likefont.com, I discovered the font 等线 (DengXian)Bold, wich gave me the best results, resulting as follows.

Let's compare the differences...
NOT MATCHING:Blue: Original font.
Red: Deng Xian Font.
MATCHING: Grey.

As it's impossible to get the original font, the question is:
Should I use Deng Xian, that matches in 91'2%, or should I just clean the original image?The first option has the best results, and it's easier,
faster and more proffessional. The second one, respects 100% the original shapes, but takes more time, and has lower quality.
In my opinion, I would go for the first one, as it's better for the restoration process, and it pretty much maintains the same appearance, with really nice results. Tell me your thoughts, please!