@xSauriaNx
And it IS salt-inducing. One person fails, and it's over.
Especially infuriating was one hard mode (or was it a challenge mode in side story?) where your entire party has to go into separate rooms one by one, each controlled by you. So you have to quickly dispatch of the enemies in each room (each having different enemy type, so you can't send a Bio valkyrie against Mechs), and the longer you take with one room the less other rooms will have since there's a time limit.
And after that there's a boss fight with entire party together, but that's still on the timer... took me at least 5 or 6 attempts.