At the start of the game, in the Millennium Fair, do the following. At the east side from where you hit Marle, but before Gatto, there is a cat. Talk to it and go to where there is a girl (more to the right). She will be grateful. Only talk to the cat once. Never eat the food above the table before Gatto. When you crash Marle, immediately take the pendant and give her. Do not hesitate. When Marle asks you to wait on her before going up see Lucca, wait until she starts talking again. Do not move. These things will reflect some time more, when Chrono gets jailed.