>>719839045 (OP)
>emulate
yes, that'd be perfect if you have a powerful PC
soon (~a year) you will be able to play the decompiled games from 360 and that would be another route
if emulation is not an option or your pc ain't powerful enough to run it smoothly
ninja gaiden sigma 1 is close enough to ninja gaiden black to be considered a "passable" experience for a new comer out of the box (on steam) . I'll leave it at that. It's not great. But it'll do.
The only other way to do NGII is to mod sigma 2 version from steam using the black mod by busa (the installation guide is on youtube). It's also not perfect but it gets you pretty close to the OG NGII. Again "black" is a mod for sigma 2 and not the re-release. Only play it modded.
absolutely avoid sigma 2, NG2 black and all that other unholy cuckery
no info on ng3 because I don't give a fuck about it (razor's edge is not terrible but treat it like a well made fan expansion to kill time)