>>724942203
My understanding is that they actually do 1 damage, but the bonus from being full health is not affected. Meaning that the only way to actually win is to use AoE multihit purple characters. Of which there are surprisingly quite a few.
The squarebots do almost no damage what what you want to do is have a tank(Aoba is the best), a way to force them to move forward(could be self propelled like Aoba or use someone like Serina), a purple aoe character(Ichika by far the best by sHanako and Renge works too, or whoever you have) and some sort of accelerator(sShiroko, Seia, Himari, Kisaki or even Cherino) or just Rio.
>move tank forward
>purple aoe splash
>repeat

>>723689919
This young woman will never recover from how she was rejected by Sensei in her L2D momo.