Proto - Babil Proto - Babil , along with Geryon , is one of the two exclusive superboss es in the 3D remake of " Final Fantasy IV " . It can only be fought if the player stole the Dark Matter item from Zeromus on their previous playthrough and uses it on the face on the moon ' s surface . As its name implies , it is a prototype of the Giant of Babil . Battle . Proto - Babil is equipped with several of the most powerful attacks in the game , including several new tricks . Initially , it can use the Trap Door ' s Ninth Dimension for an instant kill ( though this is easily dodged by way of Adamant Armor ) , along with a new move , Light of Babil . This attack will do incredible amounts of damage to anyone , likely doing 9 , 999 regardless of Adamant Armor use . It will also sometimes Counter attacks and magic with the CPU ' s Laser Barrage and Object 199 . Once the player has inflicted 280 , 000 points of damage to Proto - Babil , its attack pattern will change . It will alternate between Heal ( recovering over 20 , 000 HP ) and its ultimate attack , Divine Judgment , dealing 6 , 000 + points of damage to the entire party . It will also sometimes counter attack with Object 199 . Strategy . It is advised to confront Proto - Babil with a Level 99 party with the maximum possible stats . At least one unit should have HP exceeding 5 , 000 for him to survive Light of Babil . Golden Apples , Silver Apples , or any HP boost such as the HP + 50 % augment will be a significant help . Your slots won ' t be able to accommodate all the commands needed , so you ' ll have to go for the Auto - Battle slots ( you ' ll have time to use it during the battle ) . Pray , Bless , Brace should be in these slots . Also , Phoenix is imperative , preferably equipped on two units ( such as Edge and Kain since they have the lowest MPs ) should Proto - Babil use Divine Judgment right after Laser Barrage ( or vice versa ) . Should either of the units equipped with Phoenix falls , the number one priority in this battle is to revive them with full MP ( Dry Ethers and Elixirs should be abundant in your Inventory ) . If a unit has Salve , it would be a great help . The battle should be opened with Slow , as usual . Rydia should Dualcast Bio and Meteor at her first turn . After , Omincasted Protect and Shell is in order . Have a character with Draw Attacks equipped use Defend each turn and heal him / her after Light of Babil ( Dualcasting Curaga then Cure is sufficient ) , and hit Proto - Babil ' s HPs down to as close to 120 , 000 as one can get . Edge should Throw all his Fuma Shurikens ( buy as much as you can afford from Kokkol ) , and should he run out , resort to Throwing the powerful weapons such as Excalibur , etc . If Edge also has Focus , simply charge up then attack . Rosa should Dualcast Holy ( given that she ' s not preoccupied with healing ) and Rydia Meteor . HP must be kept as high as possible , but prioritize dealing as much damage as possible since you have Phoenix as a backdrop . If Cecil has the Limit Break augment equipped , you might want to risk Twincasting Ultima . The problem is either Cecil or Rosa can get KOed mid - casting and Rosa needs the turns . Risking Ultima is recommended only in the first few minutes of the battle , where Proto - Babil isn ' t going to use Divine Judgment yet . Focus three times with Cecil ( and Edge ) and Kain and use Jump / Darkness should boost the damage as much as possible . For a safer risk , Focus just two times . With Onion Swords equipped on both characters and some timing . Defending and Bracing ( for units with Brace equipped ) will be a big help against Laser Barrage . Do not throw attacks unless it ' s spam , so as to deter Proto - Babil ' s Laser Barrage counter . Ninth Dimension only has a 30 % chance of succeeding , and you ' re armed for Light of Babil , so until now the only problem will be Divine Judgment . Before the 280 , 000 HP marker , time Edge , Cecil and Kain ' s Focused attacks so they spam Proto - Babil before it wipes your party out . iOS version . In the iOS version , the < 280 , 000 HP marker poses more of a difficulty since the player can only obtain one Limit Break Augment in all three playthroughs possible . A prospect approach is having a unit ( preferably Edge , or anyone equipped with Bless as long as it ' s not Rosa ) Hide so the game won ' t end after Divine Judgment , then coming out after to revive the party , then Hide again as the rest of the party resumes its routine . AI script . If HP = > 120 , 001 : If HP < = 120 , 000