Pause the game if you are losing a battle. Then hit ''equip'' and resume the game. You will be at the start of the battle, with full energy.

To start as Mar (the flute boy) talk to Sephy and Magnus then say No. Then move further along the deck and talk to Zeus and Cleo and say No. lastly, make your way back to where you came from at the entrance to the deck and a cut-scene will begin to start the game with Mar.