hypersonic characters in naruto, are there any?
i mean, just because a character can shunshin faster than the MS Can follow doesn't necessarily prove that their moving at hypersonic speeds. let alone supersonic.
the reason why i say this is because when characters use the shunshin, they do not create sonic booms or generate shockwaves that would leave craters in the ground.
only character to replicate feats like this with pure speed is rock lee when he's in the 5th gate. (presumably BM Naruto)
dragonball z characters are perfect examples of hypersonic fighters because they cause severe environmental damage just by their speed alone. they also create thunderous sonic booms all over the area.
but hey! maybe im wrong, maybe naruto characters can move hypersonically, kishi most-likely just doesn't give a fuuck about physics!