Board Thread:Questions and Answers/@comment-27274909-20160205160641/@comment-27507964-20160205171040

There seems to be no correlation between being a ninja and using Spinjitzu. Doubloon was able to use Spinjitzu and he really had no ninja training even though he seemed to be very athletic. It could be that anyone with a fit body can learn Spinjitzu and it just helps to be a ninja because you are already so fit. Sensei Wu would've probably taught Nya Spinjitzu back when he thought she might be the green ninja.