The Mattel NES?

[Jorpho]

So I was reading a lengthy article at Gamespy about game rating systems throughout the world, when I came across this box shot of Probotector. (I always thought it was Protobector, but never mind.)
http://www.gamespy.com/articles/652/652162p4.html

Look at the text in the lower-right corner:

This Game Pak may not be used with the Mattel or NES versions of the Nintendo Entertainment System

What exactly does this mean? I assume the "NES version" would be the North American NTSC NES, but what's this Mattel version?

[sniperCCJVQ]

Nothing.

Mattel was used outside of the US for the distribution of the NES. So that's why their name/logo is on the boxes.

[sniperCCJVQ]

Nothing.

Mattel was used outside of the US for the distribution of the NES. So that's why their name/logo is on the boxes.