Great Giana Sisters
Apparently The Great Giana Sisters never saw release for the ZX Spectrum, due to legal pressure from Nintendo. Yet, apparently some time ago a working copy did seem to surface:



There is always the possibility this is a fake of course, BUT I did find an interesting letter in SU november 1988 - where a certain Gavin Sharpin writes about the game - kind of proving that at least a few copies did find their way into the shops, just as happened with the C64 and Amiga versions:

Any hopes of finding a complete copy somewhere - so it can be dumped and preserved?

Comments
And I wouldn't get too excited about letters in old mags. They were quite often made by the people who made the mag themselves ;)
lol, I wonder what kind of letters they recieved really.
I would imagine a lot of childish stuff from 8-11 year olds which never seemed to get printed.
I think this is the thread you're thinking of. It was going along nicely until the weasel got involved.