Quote (Maher @ 19 Mar 2017 08:30)
64dd was never released to the public
It was released in Japan. It was a commercial failure so they decided to discontinue it and not release it in NA/Eu.
Quote (Noobalator @ 19 Mar 2017 06:23)
I wouldn't even categorize the 64DD.
Well it's more of an expansion rather than an updated version, but it had its exclusive titles and such, making it somewhat of a 2.0 version of the N64.