Iutycyr Tower The Iutycyr Tower is an exclusive dungeon available in " " and . The tower dungeon ' s layout is similar to Via Infinito . It has 80 levels in total , and at every 20th level the player has to fight a boss . On every tenth level , Yuna , Rikku and Paine will have a conversation about what has happened since the events in " Final Fantasy X - 2 " . Story . Three months after defeating Shuyin and Vegnagun , the Gullwings members have gone their separate ways : Yuna is living with Tidus in Besaid , Rikku is working mission after mission , and Paine is wandering Spira by herself . They are brought back together after each received a letter that called them to explore the newly discovered Iutycyr Tower . As the trio explores the tower ruins , they converse over what they ' d been doing since they had separated , and why they hadn ' t stayed in contact . The conversation escalates as Rikku expresses her jealousy towards Yuna who had reached her goal in life and settled down . The bickering between the pair causes Paine to raise her voice against them . Eventually , Paine reveals she was the one who sent the letters citing it was her wish to not lose the friendship they once shared , having learned from both her previous friendship with Nooj , Gippal , and Baralai , and from her own lonely travels . On the final floor , the trio encounters Major Numerus , who appears to be sealed or out of order prior to the disturbing of its slumber . Before attacking the party " CAUTION " , " KEEP OUT " and the following verse ( a possible reference to the " spiral of death " ) : in Spiran script can be read on his body . Major Numerus has to be defeated three times before the final stair can be climbed . The trio travels to the top of the tower , where they find a broken machina , whose upper part slightly resembles Sin , and not much else . The trio realize the machina resembles their group : broken and separated . As they vow to be more than just strangers who met by chance , becoming friends once again , the machina springs to life and their adventures continue . Scaling the tower . Moving and battling in the tower is done differently from the rest of the game . Everything is turn - based , similar to " Chocobo ' s Mysterious Dungeon " . Fiends appear on the map , the player chooses their action ( which can be moving , changing dressphere s etc . ) , then the fiends will take an action . Finding an elevator will allow the player to advance to the next floor . Reaching the 10th , 20th , 40th , 60th and 80th floors earns a new trophy in the " Final Fantasy X - 2 HD Remaster " version . Musical themes . The themes that play within Iutycyr Tower are called " Last Mission No . 1 " , " Last Mission No . 2 " and " Last Mission No . 3 " . The tracks appear in the " Final Fantasy X - 2 International + Last Mission Original Soundtrack " as tracks 4 , 5 and 6 respectively . Etymology . In the Japanese version , " yadonoki " is an Al Bhed translation of " maboroshi " , meaning phantasm or illusion . In the English version , " iutycyr " is reverse Al Bhed for " eidolon " . " Eidolon " is a Greek word for " unsubstantial image " or " phantom " , and has been used as a name for summoned monsters in some installments to the " Final Fantasy " series . Before the release of " Final Fantasy X / X - 2 HD Remaster " , the tower had been given an alternative English name , as found on a collectable card : " Abrasanym " , Al Bhed for " ephemeral " . Incidentally , the adjective " ephemeral " is used for manikin s of " Final Fantasy X " characters in the " Dissidia " games .