~ Hey There! ~ I'll do Difficulty 2 some other time once I start leveling up my characters, getting Calcharo and Jiyan, and ranking my Union Level to 30. I find fighting Hologram Bosses while solo, is not much of a huge difficult gap since you will be playing more methodically and waiting for parries. It's just pushing you to not get hit and you don't have access to healing. Unless you're playing Danjin or other certain characters, then the difficulty gets twice as hard.