My friend decided that he would take up a list of every side thing in kingdom hearts that had 13. He is a conspiracy nut because of assassins creed so here goes
■It is primarily associated with Organization XIII (and by extension, Mushroom XIII, Finest Fantasy 13, the thirteen floors of Castle Oblivion).
■Riku's Limit "Session" includes an ability named "XIII Blades".
■There are thirteen letters in "Kingdom Hearts".
■The ability that Sora uses in the first Kingdom Hearts, "Ars Arcanum", consists of thirteen attacks if you select the follow-up attack.
■In Kingdom Hearts Birth by Sleep, not counting the additional matches in the Final Mix version, the Mirage Arena has thirteen matches.
■The Ultima Weapon in Kingdom Hearts II requires 13 Orichalcum+ for item synthesis.
■The sum of all the letters in the names Sora, Riku, and Kairi is thirteen.
■The same is true for Roxas, Sora, and Xion, and Roxas, Axel and Xion.
■In the opening movie of Kingdom Hearts the letter "M" in the word "Kingdom" surges towards the screen distinctly, with "M" being the 13th letter in the alphabet.
■In each major installment of the series, the final world is the thirteenth: in Kingdom Hearts, End of the World is the 13th world to be seen (counting Disney Castle); in Kingdom Hearts II, The World That Never Was is the 13th world; and in Kingdom Hearts: Birth by Sleep, it is the Keyblade Graveyard (counting Destiny Islands).
■There are thirteen letters in "End of the World".
■In Kingdom Hearts Re:coded, there is a System Sector in Hollow Bastion that contains 13 floors.
■It is primarily associated with Organization XIII (and by extension, Mushroom XIII, Finest Fantasy 13, the thirteen floors of Castle Oblivion).
■Riku's Limit "Session" includes an ability named "XIII Blades".
■There are thirteen letters in "Kingdom Hearts".
■The ability that Sora uses in the first Kingdom Hearts, "Ars Arcanum", consists of thirteen attacks if you select the follow-up attack.
■In Kingdom Hearts Birth by Sleep, not counting the additional matches in the Final Mix version, the Mirage Arena has thirteen matches.
■The Ultima Weapon in Kingdom Hearts II requires 13 Orichalcum+ for item synthesis.
■The sum of all the letters in the names Sora, Riku, and Kairi is thirteen.
■The same is true for Roxas, Sora, and Xion, and Roxas, Axel and Xion.
■In the opening movie of Kingdom Hearts the letter "M" in the word "Kingdom" surges towards the screen distinctly, with "M" being the 13th letter in the alphabet.
■In each major installment of the series, the final world is the thirteenth: in Kingdom Hearts, End of the World is the 13th world to be seen (counting Disney Castle); in Kingdom Hearts II, The World That Never Was is the 13th world; and in Kingdom Hearts: Birth by Sleep, it is the Keyblade Graveyard (counting Destiny Islands).
■There are thirteen letters in "End of the World".
■In Kingdom Hearts Re:coded, there is a System Sector in Hollow Bastion that contains 13 floors.