Robot Girls Z ended up being the second most paid app in China. It also won the best mobile game award in 2015.
Toei's one cheeky cunt. They knew damn well that their game wouldn't do shit in Japan due to how saturated it is, so they opened it up in the Chinese market. Smart move.
That said, I'm wondering how Gren-chan in a bikini made it past the censors.
As much as I don't mind this, even the Kotetsushin version looks more faithful to the source material.