Atari 7800
High Score Cartridge
Modern Remake (2000/2001)

Some History:    The Atari 7800 High Score cartridge was a proposed add-on peripheral originally  designed by GCC and turned over to Atari for PCB layout and case design.   Gary Rubio was in charge of building, testing and cost reducing the project.    In July of 1984, 1 month after the initial release of the Atari 7800 PROSystem Atari was sold and the Atari 7800 was put on hold.    All of the peripherals (including the high score cartridge) were permanently canceled.     In the spring of 1999 Gary Rubio contacted Curt Vendel and after he discussed his role in the Atari Consumer Electronics Division. Gary sent Curt information regarding the Atari 7800 High Score cart and explained that it had never even made it to the breadboard stage, Curt and Gary toyed around with the idea of actually building the cartridge for classic Atari 7800 users to enjoy.   Finally one piece of the Atari 7800 legacy would make it into the hands of the game players.    So during a trip out to California in November of 1999 Gary gave Curt the original ROM code for the cartridge and on old schematic that GCC had drawn up.    Several months later the result is the first ever Atari 7800 High Score Cartridges to ever exist.

Owners Update

Attention all earlier 7800 High Score Cartridge owners.    Do NOT leave your 7800 High Score cartridge
plugged into your Atari 7800 PROsystem console when not in use.   This will quickly drain the
battery in your High Score Cartridge causing loss of Personalization and Scores.

FREE "Rev 3.1" upgrade available to correct this problem, please email to arrange to
ship your cartridge for upgrade, FREE battery, brand new cartridge included too!

To Purchase the new 7800 High Score Cartridge
Click on one of the four authorized dealers:

 B&C Atari Sales and Video61 Atari Sales

4 Jays Video Game Sales and


    What I would like to do is make an official owners database here on this page.   So if you've purchased a 7800 High Score cartridge, please send me an email with your full name, State/Country and your Serial #.    The Serial#'s can be found on the plastic bag, inside cartridge case covers and on the back of the high score electronics board itself.     Serial #'s range from 006-120 (001-005 are being kept by myself and Gary.   The major difference in these 5 cartridges which makes them unique is that they do NOT have a hole drilled in the center of the cartridges for the plastic case post. {it'll be really hard to fake a prototype with a piece of the actual board missing, right?}  So who knows, maybe in 10-20 years these will end up becoming sought after prototypes.... maybe not :-)

    I hope everyone who has received their High Score cartridges is happy with them and enjoying them.    If you have any questions, please feel free to drop me a line, thanks!    Curt.

Below you will see some photo's of the 7800 carts in various stages:

First thing you do is personalize your cartridge so you now its yours....

After a game is over you will be taken to the high score screen, if your score is
within the top 5 the cursor will flash and you move the joystick left-right or up-down
to move to a letter or symbol, press the fire button to select.   Move to a solid block
to complete.   Gary has personalized his cart and there is his high score on Asteroids.

Here is my high score on Dig Dug, mind you these are practice games to test the
high score cart capabilities, so no snickering at the low scores! :-)

This is the 7800 HSC (Revision 2) board.     The design was tough as the cart had to meet certain criteria in order to make it simple and inexpensive to build and sell.   The cart is designed to fit into a slightly modified Atari 7800 cartridge casing.  There are 16 separate components that make up the cartridge and as you can see, space is very tight.    Originally I had wanted to design a module that would sit flush on-top of the Atari 7800, but due to the angle of the 7800, however the module would have had to have been in two parts with an angled connector or ribbon cable, so I opted not to go this route.

Its not the most attractive set-up (sorta like a 5200 with a CX55 2600 adapter and cartridge arrangement) but its simple to use and works and in the end, that's what counts.

A row of high score carts being built and readied for their 2732 ROM code and off to testing....