Use the same method to defeat the Chaos Zomos. Defeating them will earn you three times the normal amount of gil. There will also be stronger Chaos Zomos that appear. Do not worry about Overclock usage, as you will get 4 EP on the Easy difficulty (and a little less on the Normal difficulty) once you defeat it. Once the Zomos is staggered, use your physical attacks and Overclock to defeat it. When fighting Zomos, stagger them by using Thunder and guard against any incoming attacks. Make sure to pay attention to the clock when you are farming money and EP, as you do not want to lose time. Once the Forsaken Graveyard is unlocked at the start of Main Quest 1-4, run around that area to encounter Zomos (dragons). Utsusemi: Play the Lightning Returns: Final Fantasy 13 demo. Siegfried: Defeat the Boss in the demo, and upload your score. Knight Of Etro: Have a saved game file from Final Fantasy 13-2.
Guardian Corps: Have a saved game file from Final Fantasy 13.
Successfully complete the indicated task to unlock the corresponding costume: