Via Infinito The Via Infinito is a vast labyrinth optional dungeon below Bevelle . It can be accessed during the 5th chapter of " Final Fantasy X - 2 " . In Chapter 5 the player can go to Bevelle Temple and find a glowing glyph on the floor at the end of the path on the right . Completing Via Infinito contributes toward the story completion percentage . The player can find fiends fought earlier in the game in Via Infinito , making the dungeon a good place for completing Shinra ' s Bestiary . For the fiends to appear in Via Infinito the player must have first encountered them elsewhere , although some enemies never appear there . The player faces many of the toughest opponents in Via Infinito and at Floor 100 fight a superboss . Profile . The dungeon comprises of 100 cloisters and a final " Infinity " cloister where the party can challenge the boss , Trema . For each cloister block of 20 floors , there are about six level designs which appear at random . Because the dungeon is swarming with monsters , equipping a Charm Bangle for No Encounters will have no effect . Every oversoulable fiend , except for the Georapella and Precepts Guard , can be found here . Certain fiends can be found wandering the levels in real - time , either Elder Drake or Mega Tonberry , and approaching them will initiate a battle , but most of the time they can be avoided . On rare occasions , a Tonberry will offer a random item in lieu of a fight . On each level , the party has the opportunity to save the game and escape the dungeon on a blue portal . When returning players can continue from the deepest level reached , or start again from the beginning . Banners with Yu Yevon ' s likeness can be seen on each floor , but the symbol itself is upside down . Every 20th cloister a boss battle will begin . The bosses ( with the exception of Trema ) are major supporting characters from " Final Fantasy X " who died and became unsent . Cloisters . As Via Infinito has the toughest enemies using strong equipment and dressphere s is optimal . The Highroad Winds and Mounted Assault Garment Grids offer the First Strike ability , which is useful for everyone . Good dresspheres are the Dark Knight for their high defense and HP , Gunner for their damage - dealing potential , Alchemist for healing and Berserker with all the evade abilities learned for fighting the Elder Drakes . Berserkers are especially powerful with a Speed Bracer equipped . Gun Mage s also have a chance to learn some Blue Bullet abilities from Via Infinito . Accessories that boost Luck are especially useful . Lady Luck is good for easily bribing opponents and Mascot is the strongest dressphere in the game . Cloisters 0 - 20 . Crimson Sphere 6 is received at the entrance of the dungeon after the initial cutscene . Cloister 0 is known as the Great Cloister . They appear every 20 levels . In Cloister 0 , on the far right side of the Great Cloister there is a hidden path to a pillar . Jumping on it transports the player from Great Cloister to Great Cloister ( every 20 levels ) . This is useful for battling fiends one missed oversouling and if one accidentally went back to Cloister 0 . The first bloc is the easiest and can be completed in under 30 minutes . There will be Elder Drakes jumping back and forth , but the player can get past them without a fight . A way to tell that there is one nearby is by the roar and jumping noises . The boss at Cloister 20 is Aranea . With only 18 , 000 HP he may not seem like much of a boss , but he is strong and can inflict Stop with normal attacks . It is similar in appearance to Boris from the Floating Ruins on Mt . Gagazet . It was once Maester Wen Kinoc , who was murdered by Seymour Guado . Crimson Sphere 8 is a reward for defeating Aranea . Cloisters 21 - 40 . This bloc of cloisters has three new level designs . The level with the Elder Drake might now have two . There is also another room with an Elder Drake in a pit in the middle of the path . This particular cloister has a path going left and right ; the player should take the left path and hit the switch to activate stepping stones . The boss in Cloister 40 is Black Elemental that only has 9 , 999 HP , but maximum Magic and Magic Defense stats . Its Ultima attack is usually lethal . It was once Lord Jyscal Guado , former Maester of Yevon and father of Seymour Guado . After defeating the Black Elemental , a chest will appear containing Moon Bracer , Shining Bracer , Speed Bracer , Recovery Bracer and Cat Nip . Cat Nip has the ability SOS ? ? ? ? , which when equipped , will cause the wearer to deal 9 , 999 hit points in damage with all attacks if their HP is HP Critical . In the International and " HD Remaster " versions , it also has Auto - Berserk and Auto - Slow . Cloisters 41 - 60 . The dungeon gets harder from here on . The level designs will be different , but a couple stay the same . Mega Tonberries appear in the floors now , although uncommonly . To get past the Mega Tonberries without a fight the player must run to the side through the gap . Instead of two jumping Elder Drakes there will be one jumping front to back to the side and one at the end off a ledge that is hard to see unless one stops at the edge and drops down . If the player jumps the ledge a battle ensues ; to avoid it the player must drop down and run to the side . In this bloc there are Tonberries with tiny Tonberries ; if the player finds a cloister that starts on a ledge and at the edge there are three more ledges in intersections and one in the middle , following the path of that cloister to a Tonberry near the exit has a tinier version of him standing next to it . Talking to the little Tonberry gives an item . The boss in Cloister 60 is Concherer who has nearly 350 , 000 HP , high stats across the board , and can inflict heavy damage . Its appearance is similar to Neslug of the Monster Arena from " Final Fantasy X " . It was once Grand Maester Yo Mika . Cloisters 61 - 80 . If the player equips Cat Nip and keeps a Gunner ' s HP Low they can clear this bloc faster and be automatically be prepared for the boss battles to come , although this strategy is no longer viable in the " HD Remaster " version . This bloc has many Mega Tonberries , but none of them are mandatory . There is a cloister with a long ramp / bridge with a Mega Tonberry at the end . To get past it the player must wait for him to walk away and then jump down the bridge and make a left , go down and press to get on another platform . There should be three separate bridges with Tonberries : two small ones at the ends and one in the middle . The exit is the middle , but it is blocked by the Mega Tonberry . Instead of fighting , the player can fight the two small ones to make the Mega Tonberry disappear . On some levels , there is a Mega Tonberry waiting on the left intersection , so player should slow down in these parts . There is also a cloister full of Tonberries . The Mega Tonberries can ' t reach the player , but if the player touches a small one a fight with a Mega Tonberry will ensue . The player must avoid the Tonberries and look for a switch . This cloister has two side platforms and two top platforms . One has a teleport glyph and one is a switch . The other two are empty . The boss in Cloister 80 is Chac , a strong Basilisk with over 430 , 000 HP who petrifies the party . She was once Lady Yunalesca , the keeper of the inner sanctuary inside Zanarkand Dome . Cloisters 81 - 100 . The bosses from previous boss battles in Via Infinito appear in the last bloc as normal encounters , but it is possible to escape from them . From the cloisters 85 to 99 , Elder Drakes become random battles . In the last 10 floors the Via Infinito bosses don ' t appear much , but the fiends start appearing in unique battle formations and ambush the party regularly . With First Strike the ambush isn ' t a problem . There is again a cloister with a regular Tonberry with a tiny Tonberry . Instead of a battle , the player can press on the normal - sized Tonberry to receive an item . The player can click to push the small Tonberry around , then get another item from the bigger one . The maximum amount of items one can obtain from them is two . The items obtainable from the Tonberries are : There will be two bosses in at the end of Via Infinito with no chance to heal after the first boss . The boss in Cloister 100 is Paragon who has 200 , 000 HP and high stats . After the battle , Paragon will be wiped away and the final battle with Trema will begin . Paragon was once Lord Zaon , Yunalesca ' s husband and the first Final Aeon . In Cloister Infinity , the party faces Trema , the former head of New Yevon , who entered the Via Infinito a year ago . Trema is the strongest superboss of " Final Fantasy X - 2 " with 999 , 999 HP and maximum stats , his physical and magical attacks both being deadly . When Trema has been defeated , the dungeon will be complete and the accessory Iron Duke is awarded . It raises all stats by + 100 ( except Agility and Luck , which are + 10 and + 50 respectively ) and boosts HP and MP by 100 % . Musical themes . The theme to Via Infinito is called " Anxiety " , called " Disquiet " in the Luca sphere theater and iTunes .