The one on the video seems to be on natural or DOA physics but there's always the off option to make breasts stay still and not have a life of its own like some parasite-infested tumor lol (I know I would put the physics off).
If ever they do plan to release this up on PSN stores, what they could have done to this costume to make it "acceptable" is to modify the shells bigger and wider to not only cover nipples then make the gold "strings" visible in color. As for the bottoms, maybe if they add some sheer skirt over it like the one on Leifang's 5UCE swimsuit in a dark golden orange shade.