Board Thread:Boruto Discussions/@comment-1458758-20171229124917/@comment-734582-20180101145710

Gagua2028 wrote: I just hope Katasuke doesn't go on making inventions on the six paths of pain (eg. the recent ninjustsu absorbing suit). I just don't like the thought of ninja tech advancing to techniques which are exclusive to the Rinnegan, which itself is a godly power. The Paths of pain themselves are not rinnegan-exclusive powers. Some aspects notably are (e.g. Shinra Tensei / Bansho tenin), but others are just Nagato improving existing techniques. IE Nagato used a more advanced mind transfer jutsu to control his Paths, uses more advanced puppetry to make his paths, and Ashura Path itself is just summoning of advanced weapons and tools.

So the weapons that Ashura used could be reverse-engineered. And a skilled Yamanaka could also create a Six Paths technique (although those paths would obviously not have Rinnegan powers like Bansho Tenin).