Should I level most party members equally, is there moments where I am forced to use certain ones only?

[Uncle Jon]

It has been a very long time since I played P3 and I never finished that game. Party members do not gain experience when they are not in your party, should I level everyone equally in tartarus or can I focus on a specific group that I like playing with?

[Hymnos]

Nah, just use the useful one since the game add somekind of cacth up mechanic later on for underused party member to keep up their lvl

[shinmegamikazuya]

Yeah just use the ones you like there are mechanics later on that let them catch up instantly. Also becomes very easy to stack bonuses and snowball in general.

[RavenHunter]

Yes, there are Times when some party members wont be prezent, tartarus wise too If u decide to go when someone cant( they will mention when u come back in the evening.

Leveling wise, there îs a mechanic that allows that for two members at a time If u decide to use the twilight thingies in Tartarus. Hope this helps

[MeldinX2]

As other people said. Use the party you find the most fun. But it would be a good idea to have it diverse. Like have someone that can heal/remove ailments and have one that is good with physicla skills ect. It's usually not worth it to spend alot of time trying to have every single party member at the same level.