Is the following item out there?

[10phoneman]

A Sega Genesis controller that can play on Intellivision 2 system

[nick3092]

While you can convert other system controllers to Intv, it's a bit more complex and not ideal. The Intv uses a matrix for its input, as opposed to other systems that used dedicated pins for directions and buttons.

 

Not to mention the lack of a key pad eliminates any game that uses it to select options when starting a game or during gameplay.

 

And the Intv used a 16way disc. While the best a genesis controller can do is 8way. Which is fine for a good portion of the games. But not ideal for some, and I believe a couple might not really be playable with only 8.

[mr_me]

Intellivision uses four pins for up, down, left, right; like any other system. A fifth pin is used for most diagonals. Each side button does use two pins but that can be taken care of with a couple of diodes. Some games do use the keypad for the third action button, e.g. defender, space hawk, astrosmash. Otherwise a y-adapter would give you access to the original keypad.

Edited March 13, 2019 by mr_me

[intvnut]

Have a look at this thread: http://atariage.com/forums/topic/213882-sega-adapter-for-intellivision/

 

You might ping grips03, as he said in the thread he was working on such a thing.

[+grips03]

Have a look at this thread: http://atariage.com/forums/topic/213882-sega-adapter-for-intellivision/

 

You might ping grips03, as he said in the thread he was working on such a thing.

I sold that one and then made several more for sale here:

http://atariage.com/forums/topic/264012-sega-to-intellivision-controller-adapter

 

I lost so much money making these, that I hesitate to make any more.

[intvdave]

A Sega Genesis controller that can play on Intellivision 2 system

 

How about playing in emulation and using an interface so that you do need to modify the controller?