Triumph in 500 battles.

You stole a train?

Defeat 300 monsters.

Deliver Francois's letter to Clara.

You sank the Ghost Ship.

Win 50 battles.

Do a good job swabbing the deck.

Level up for the first time.

Acquire the Spirit Stone.

See Ending 2: The Acacian Empire.

Defeat the evolved form of the Time Devourer.

Obtain Chrono Cross, the rainbow-aligned Element.

Defeat FATE, the mother computer of Chronopolis.