Well, me and Boco had gotten into a debate and he said that Zeromus, in his first form () was invincible. Boco thought he was invincible because he absorbed Meteor in a storyline directed battle.

In this form, he absorbed all magic and was able to send it right back at you and you couldn't hit him with physical attacks. In fact, it was only with the use of The Crystal combined with Cecil's Holy spirit that they were able to weaken him into his true form. In this form, was he really invincible or is it just so you couldn't mess up the storyline?