So, I feel like I've been training my party forever to defeat Zeromus, but his big bang attack keeps getting at my low HP Members (AKA Rydia and Rosa) I was just wondering what levels other people were at when they beat Zeromus. 0.o
Right now I have:
Kain-53
Rydia-49
Cecil-52
Rosa-50
Edge-51
BTW This is FFIV: The Complete Collection
Right now I have:
Kain-53
Rydia-49
Cecil-52
Rosa-50
Edge-51
BTW This is FFIV: The Complete Collection


Despite that the Complete Collection seems to make the game easier than the other versions (from what I've played so far), you may want to grind a bit more to level up your characters . 
But if you want your party to level up very fast, I'd recommend training on those levels ~