I bought this Colecovision cartridge yesterday at a local mom & pop used video game store. It caught my eye for several obvious reasons;
it had an odd label and it also weighed just slightly more then a normal cart, so I took a chance and bought it.

I knew very well what game it could possibly be (only one game like it for the system) and when I came home, I plugged it in,
and low and behold, yes indeed, I was right.
It has a socketed eprom board with an 8kb EPROM dated from roughly May of 1983.

And the best part, is that it's different then the previously discovered version!
I played it for a bit last night and this morning. Carefully comparing it to the common version available on the internet.
Here is what I found so far:
It is probably an earlier build because it appears as how Konami would have released it by themselves.
-- it does not have the generic Coleco 8 second loading screen. It is not present at all.
-- it will not power up on a cold start. the cart must be inserted with the power on, and then you must hit reset.
-- the title screen is different as well. it has the keypad options on it since it does not have the standard blue screen.
-- it has an attract / demo mode which it cycles through on it's own.

Anyhow, I just wanted to share my discovery with everyone.
And yes, to answer what is always the most asked question, I will read & save the eprom at some point this weekend,
to safeguard the data and give it to the community.
Although I am not an "official" member of the Colecovision brotherhood, they have done many great things for us,
and so I want to return the favor, whenever it is possible.
Regards,
Billy