Does anyone know what Clownpiece is cosplaying as?
It is "ZOZOSUIT". The original clothes were made by the fashion company ZOZO and includes a measuring function. The look of the clothes became a moderately popular meme in Japan.
So is Sugar like Himari from BA where she's just frail and can't stand for too long or at all, or is she properly paralyzed?
She can't run, she can only stand for a moment. Like those people who suffered leg injury for too long but had to do the "theraphy" so they get used in walking/running again
Sasha characters design is based on YouTuber Suzi aka the Sphere Hunter. Suzi would later appear in the Phantom Liberty expansion pack as Sasha's sister, Stella Ramos, a Night City Police Officer.
Yep. Her chuuni behavior isn't an act or a quirk; it's a result of brainwashing.
Considering that the whole event feels like the chinese version of "skibidi toilet" but with monkeys and a slightly deeper meaning...yeah, you could say that it's something cruel, but after learning the truth she could've snapped out of it and could've followed her own ninja path as a way of granting her adoptive father/mentor last wish