How much would this be worth? :P

The signature is on the plastic cover. Mundocombo himself said so after getting it signed.

 

in that case cool.

it's a conversion of the sega system 16 arcade version right?

 

Its no conversion but was an official port untill it was canceled.

BTW - is there a manual included?

 

Yes there's a manual.

 

a port of which version of Tetris? and why not a conversion? I'm too old to make the distinction

 

I considered "conversion" as a NGH-like fake cart and "port" as an officially released port (like Strikers for NGH = conversion; strikers for saturn = port).

As far as I know, its a port of the Mega-Tech System Tetris Cartridge.

 

ah.. well conversion to me isn't that - it's a term coined ages ago that was commonly used by magazines in the 8 bit and 16 bit era when talking about a game originally for arcade being made for home console.

and it was a system 16 game first:
http://www.system16.com/hardware.php?id=700&gid=3166#3166

probably then went on to cart format via megadrive conversion and then - as was usual with certain megadrive games - was made for mega-tech cart system (which is just a multislot megadrive for the arcade).

 

I did not see this post before posting the other... I don't want to make importance in the fact of the signing as a money thing, I did it for the emotive valour. This pic was taken by a friend of mine that have a blog.

The only important thing is the confirmation that this game was really made by Robert Stein.

 

There is no need for any port between MD and MT as the data on both carts are same. The only different is that MT cart have an extra "bios" chip for play the game on MT board. That is the only difference. The main rom chip have same data and chip number/label for both of the systems.