Great game.
However, pacifist mode is kinda unbalanced, in waves without aiming foes You can just sit in a corner/blind spot, or even go behind them! BUT, some waves with aiming foes (especially those squishy ones that normally dies in a moment) are just a nightmare, lvl 1-3 is way harder that most of mid-game lvl's.
XMarvin, give Natalie a strongest offensive items you have and a dark-elemental staff. Find a battle with himera bear. Buff Natz magic damage, debuff bear magic deffence and freze it. Pop up Natz limit break "Black Hole", you should deal over 30M dmg. Save before trying to do this!