DMC5 12 MILLION RED ORBS

Hi everyone, I was wondering if there's some tip that you could tell me to get 12 million red orbs in Devil May Cry 5, to get the "Unlock all the abilities of X character" , trophy or achievement, whatever you want to call it. I've been playing in bloody palace, but that barely gave some red orbs, and I don't want to spend money buying the EX Taunts, if anyone can help me with this I would be very thankfull.