Im past that im on build a robot ...the quest tella you fight floor 9,10,12 ,10 times ..and win no matter how high my stats are i lose...
Some things that help with that quest.
The quest says that you just need to fight robots, and that 9, 10, 12 have robots.
You only need to farm out floor 9 to get the robot parts, just keep mashing floor 9.
my general rule of thumb when ordering teams, High hp low damage up front, low hp high damage in back. reasoning is tanks keep the rest of the team alive by blocking bullets, while DPS widdles away at the oposite team.
You also need to progress enough with the girls to have most of everyone on your team, (I just spammed the gatcha thing and ignored the mats as they do nothing aside from unlocking the girls to battle) Also the entire party I had was lvl 15, no idea if they can get more levels, but thats when they stopped getting levels for me.