Leon's fight was the most difficult for me due to unable to get later gears and it hits harder than the boss in Kuro's last mission boss when he rages. Previous version allows party to choose random class for some obscure bonus, now the math is much tighter and even with armor maximized enemies may still one shot characters. Enemies are getting to 300+ attack around dream maze level 25 with tons of hp. Also dodge tank is barely functionable now with enemies often having very high to hit bonus. In older version player can bring some lesser NPCs like the princess and still do reasonably well, now party has to be much more optimized just to run. Tons of enemies have def/mdf too high to be damaged, player must debuff first and often only one damage type would work.