Clear 19.5: Mysterious Song - Original ModeThe first time through I played the game in balanced mode. Steve and Necromancer told me about the extra features hidden in the game the other day, so I ran through it a second time in 3 hours, and got the characters up to level 37, with the last spell obtained as X-Heal. After barely beating Grimm despite a shit-ton of ether in the inventory, It went to the "Woda" banner screen, and EX MODE UNLOCKED appeared. After clicking on it, Ogien appeared again.
He sent me back to the beginning of he game, and I am now on the third run-through to unlock the bonus features. This is a moment where the FRAM mod would be really nice to have, if you were interested in keeping your EX save.