|OK, it's Amazon, not ZX, but still great|
this Kamen Rider ZX part was taken from an HK disc which is why the subs are slightly... off. too literal, mostly. the special Birth of the 10th! Kamen Riders All Together!! is just pretty amazing altogether, so I was happy to discover this copy of it.
it's kind of sad that the special didn't turn into a show, though I doubt that it would have been as cool or as action packed as this special is- nothing could be! since the 80s started the trend toward more effects and less physical fights in at least sentai shows this could have gone either way.
did we ever find out about just why the show never appeared? lots of rumors abound, but nothing concrete that I found.