The first boss battle in the game and it is with the GF Ifrit in the Fire Cavern. Before you enter the Fire Cavern, you can choose between 10 and 40 minutes to obtain him, and the less time you have on the clock when you beat Ifrit, the higher your Judgement score will be at the end of the SeeD exam. As for the battle itself, Ifrit is weak against ice. Start off by using GFs and then finish the battle with Blizzard magic. Win the battle and you get Ifrit as a GF.