This trick only applies to forces. Make sure you have a high level MAG -- level 100 or more with a lot of power. Also have two Scape Dolls with you. Before this fight, learn Grants level 1 or higher. First of all, destroy the mines. On his next giant form, keep using Grants on him, but always make sure the pointer is on him, and not on the mines that he fires out. When his first easy form is destroyed, make sure you have Resta and Grants customized, plus Difluids and Dimates. There is only one good way to defeat this form. Stay directly next to him when he is moving. When he stops, get as many Grants in until he fires the photon beams at you. Then, heal and cast more Grants until he hits you again. Then immediately heal and repeat this until he starts moving again. Stick to his side, and repeat this until he is dead. For his last form on Hard +, just use Grants. This can hurt him when invisible and cast Resta when you are hurt.