I've had a level 100 team in every version I've owned. It should be much easier this time around, because there are trainers with level 75+ pokemon you can battle over and over. Anyway, Chrono Trigger is only 20 hours on a first run through. On a New Game+, you can halve that. Also, even on a first playthrough there are three different ways to finish the game, one of which results in a very different ending. (Well, not horribly different.)