Crystal Tower

[Felis]

Instanced content = Time limit, period lol. This is why the tower should be open world and if there's bosses they can do it BCNM style where there's certain sections of a floor you go to to initiate a boss fight.

But only if you can't raise someone outside your party. Don't forget, no savepoint in the original tower. If the party dies, they need to start the whole tower new.