[DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

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Xrider
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Joined: Tue Dec 22, 2020 11:47 am

[DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

Post by Xrider » Fri Jan 29, 2021 11:45 pm

Hello,

In love with my first console, the Nintendo NES , I decided to buy back the Nintendo NES games I had when I was a child (thank you dad & mom).
Thanks to this passion, I also discovered a lot of unknown titles

And I came across an article mentioning the existence of very very rare & expensive NES cartridge. The Holy Grail as on the call on the net.

This cartridge is a cartridge not marketed, but produced by nintendo which was used in the world championship "Nintendo" in 1990.

It is physically distinguished from other cartridges thanks to its switches at the top left of the cartridge.

Passionate about electronics and retro video games, I decided to learn more about this so mysterious cartridge, and here is what I quickly learned:

- This cartridge combines 3 games organized for the championship:
- Super Mario Bros
  • Rad Racer
  • Tetris
  • The upper switches are used to adjust the playing time during which the player must achieve a maximum of points before the time-out, adjustable from 5mins up to 9mins and 41.2 seconds, set to 6mins and 15s for the 1990 championship .
  • There were gray versions for the World Championship event in 1990, and 26 gold versions were produced to be won in a "Nintendo Power magazine" contest.
  • All the consoles were connected via the P2 controller port to give the start of the competition simultaneously (you have to press the "START" button on the P2 to launch the game on the intro screen).
  • The original Rom is made to work at 60Hz (NTSC), there are graphical bugs on Rad Racer with a 50hz (PAL) console.
  • This game cartridge is today one of the most expensive in the world :(
Not having the means to buy myself the Holy Grail, I decided to make a "PERFECT" copy of the original thanks to the rom available on the internet.
And by looking even further, we discover that:
  • Nintendo created a mapper only for this console = Mapper 105
  • It is the most complicated cartridge developed by Nintendo
  • This is the heaviest cartridge produced by Nintendo (given the number of components, no wonder ...)
  • Nintendo made openwork the shell (carcass) of the cartridges by hand
In short, with all that I had something to start to achieve my Holy Grail ...
AND after several hundred hours of work, testing, failure and perseverance I managed to have a 100% functional prototype, which embeds exactly the same components as the original version (recovered in several Nintendo NES US cartridges) .
The printed circuit and the exact copy of the original

Image Image

For comparison of my copies VS the original:

Original :
Image Image Image


Perfect Repro :
Image Image Image

I recapitulate :
  • All essential components are from the year 1990, identical to the original version.
  • Unpatched game, 100% identical to the original version (dedicated 60hz system).
  • The Shell is of Nintendo origin (gray carcass of the cartridge).
  • Cartridge compatible with a Nes Front Loader NTSC US / Canada 60hz console (In 50hz slow motion + graphic bug in Rad Racer, bug strictly identical to the original)

I produced 5 copies:
  • A final prototype version
  • A GOLD version
  • Three Gray versions
EDIT :
One available on ebay, start at 1 euros
https://www.ebay.fr/itm/Nintendo-World- ... 3875393288

I will keep the proto, the gold version as well as a gray version, the last two will be sold soon

Some period video and reference link on this historical cartridge:
https://www.youtube.com/watch?v=QXC20eO8QiU

https://www.youtube.com/watch?v=HtKVg71xaxw

https://www.youtube.com/watch?v=tmeYbma9eu4

Link :)
http://www.edition-limited.net/t8025-dossier-nintendo-world-championships-90-gold-et-grey
https://nintendo.fandom.com/wiki/Nintendo_World_Championships_1990_(Game_Pak)
https://blog.pricecharting.com/2009/06/how-i-got-nintendo-world-championships.html
Last edited by Xrider on Mon Feb 01, 2021 3:46 pm, edited 2 times in total.

LocalH
Posts: 180
Joined: Thu Mar 02, 2006 12:30 pm

Re: [DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

Post by LocalH » Sat Jan 30, 2021 10:35 pm

So, is there any hint anywhere in or on the cart itself, that it is indeed a repro? I don't know if I'm cool with what is essentially a perfect counterfeit being actively sold. You may not be passing it off as legitimate, but someone who buys one from you could potentially do so.

Certainly, impressive work in matching the small details, no doubt. Just don't want someone ending up taking one of these to Pawn Stars or some shit lol

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Xrider
Posts: 4
Joined: Tue Dec 22, 2020 11:47 am

Re: [DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

Post by Xrider » Sun Jan 31, 2021 12:49 am

LocalH wrote:
Sat Jan 30, 2021 10:35 pm
So, is there any hint anywhere in or on the cart itself, that it is indeed a repro? I don't know if I'm cool with what is essentially a perfect counterfeit being actively sold. You may not be passing it off as legitimate, but someone who buys one from you could potentially do so.

Certainly, impressive work in matching the small details, no doubt. Just don't want someone ending up taking one of these to Pawn Stars or some shit lol
I modified the website which lists the original cartridges and added an important comment about my creation:
"In 2021, Xrider (french engineer) made 5 perfects replicas of the cartridge with genuine components inside for her collection. One gold and 4 grey revision. The cartridge numbers are : 0284, 0342, 0310 & 228 (the 228 is her prototype)."

https://nintendo.fandom.com/wiki/Nintendo_World_Championships_1990_(Game_Pak)

But of course I made a "secret mistake" on PCB. I will say what it is when it has been sold :)

FrankWDoom
Posts: 252
Joined: Mon Jan 23, 2012 11:27 pm

Re: [DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

Post by FrankWDoom » Sun Jan 31, 2021 2:07 pm

counterfeiting collectibles worth tens of thousands of dollars is a pretty dumb thing to do



cuedave
Posts: 1
Joined: Tue Feb 09, 2021 7:38 am

Re: [DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

Post by cuedave » Tue Feb 09, 2021 8:21 am

Hello Xrider,

You did a very good job ! :beer:
I saw a video this morning ( le jeux c est serieux ) which the guy present your cartridge as a present for his birthday.
Some datecode on the components are not identical (some are from 99 instead of 89) :mrgreen: :arrow: https://nescartdb.com/profile/view/4627
Do you think to share your work for the other passionates ?

Hello from Tarascon 13. 8-)

@++
Last edited by cuedave on Wed Feb 10, 2021 1:48 am, edited 1 time in total.

dink
Posts: 91
Joined: Sun Jan 12, 2020 8:42 pm

Re: [DEV - DONE] Nintendo World Championships 1990 Competition Cartridge NES - PERFECT REPRO

Post by dink » Tue Feb 09, 2021 6:23 pm

Nice work :) :beer:

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