I am the blade of vengeance. They dare only whisper my name: Yojimbo.
- —Yojimbo, Final Fantasy X
Yojimbo is acquired by visiting the Cavern of the Stolen Fayth, where the player must hire him to become Yuna's aeon. Yojimbo acts as a sword-for-hire and has four different attacks depending on how much the player pays him, as well as a complex mathematical formula based on his worker-employer relationship with Yuna and several other factors. Yojimbo functions similarly to Odin and Gilgamesh from previous Final Fantasy games. His most powerful attack, Zanmato, instantly kills fiends and bosses.
With a wave of the summoner's staff, a night-time dimension forms, featuring a single sakura tree in bloom with blue flowers. A bark is heard, and Yojimbo's dog, Daigoro, appears to greet the summoner. Yojimbo emerges from behind the tree, turns with a sweep of his coat and calls upon his dog to start the battle. When Yojimbo is summoned the sound effect is the same as what was used in Final Fantasy VIII as the magic spell effect.
Yojimbo can be recruited at the Cavern of the Stolen Fayth near the entrance to Mt. Gagazet. Yojimbo will first ask Yuna a question regarding her purpose in trying to require his help. Her choice here will affect Yojimbo's behavior in battle and his probability in using his attacks. As for his payment, Yojimbo will initially ask the player for hundreds of thousands of gil but it is possible to haggle with him. To get Yojimbo for the cheapest price, the player must offer him in the first two negotiations the half the gil he is asking for plus one gil, and he will decrease his price. In the third negotiation, they must offer him 0.7 times the gil he is asking, closing the deal.
One can decrease the price three times before hiring him. If the player pays Yojimbo triple what he is asking (works even after "haggling") he will give two Teleport Spheres as a token of appreciation. This still works after having "haggled" with him.
- See the Summon and Overdrive sequences here.
- Daigoro: Yojimbo's dog will attack on his command. As it is his weakest move, Yojimbo will shake his head before using Daigoro, as if to disapprove of the amount of money the party gave him.
- Kozuka: Yojimbo throws several kozuka (a special throwing knife made to fit inside a wakizashi's scabbard) at a single target.
- Wakizashi: Yojimbo slashes single/multiple targets with his wakizashi (his short sword).
- Zanmato: Yojimbo calls his katana out of a portal in the ground and uses it to slice all enemies in half. It instantly kills any enemy in the game, with the exceptions of Sin (when fighting face-to-face on the airship), Yunalesca and Braska's Final Aeon, which will only move to the next form (unless they have already reached their final form, in which case Zanmato will kill them). If Yojimbo will perform Zanmato he will nod upon receiving the money.
There are several factors that decide what attack Yojimbo will execute. They are as follows:
- The base motivation (BM) according to how much he has been paid. The lowest base motivation is 0 if he is paid 1-3 gil and the highest is 112 if he is paid at least 536,870,912 gil. It is much lower in the NTSC version, with the lowest being 0 and the highest being 56.
- The compatibility parameter of Yojimbo to Yuna. It starts at 128 and caps at 255. It increases by 1 or 3 if Yojimbo uses Wakizashi against single or multiple enemies respectively and by 4 if Yojimbo uses Zanmato. It decreases by 20 if he is paid 0 gil; by 10 if he is KO'd during battle; by 3 if he is dismissed immediately after being summoned; and by 1 if he uses Daigoro. It remains unchanged if he uses Kozuka. This compatibility parameter is then divided by 4 in the International, PAL and HD Remaster versions of the game and by 30 in the original Japanese and NTSC versions. (CP)
- The Zanmato resistance of the enemy. A hidden variable applies depending on the choice Yuna made at Yojimbo's Chamber of the Fayth; asking to be trained as a summoner means that Yojimbo's motivation to use Zanmato will increase if Yuna hands over a greater proportion of her gil per turn; asking for the power to defeat fiends increases the likelihood of a Zanmato against random encounters and asking for the power to defeat the most powerful of enemies slightly reduces the likelihood of a Zanmato against Zanmato Level 1 fiends, while treating Level 4-6 fiends as the same with the same penalty to motivation. If the first or second choice is made, it is either 1, 0.5, 0.33, 0.25, 0.20 or 0.16 for Zanmato levels 1 to 6 respectively. If choice three is made, it is 0.8 for Zanmato level 1 to 3; and 0.4 for Zanmato level 4 to 6. (ZF)
- Additionally, if choice one is made, another factor is considered. It is (0.75 * ((amount paid * 0.50)/total gil))). Otherwise, it is 1 (CF).
- Whether or not his overdrive gauge was full when he was paid to attack. If it is full, an additional 20 points will be added to his overall motivation in the International, PAL and HD Remaster versions while only 2 will be added in the original Japanese and NTSC versions, otherwise, it is 0. (OF)
- A random factor is added to motivation. It is any number from 0 to 63.
Considering the formula and the random factor above, if Yojimbo's overall motivation is 80 or greater, he will use Zanmato. In the International, PAL and HD Remaster versions of the game, if the overall motivation is not 80 or higher, a recalculation will be made but the Zanmato level of the enemy will be treated as 1 regardless of its actual Zanmato level.
The resulting new motivation will trigger any of the following:
- 0 to 31 will promt Yojimbo to use Daigoro.
- 31 to 47 will prompt Yojimbo to use Kozuka.
- 48 to 63 will prompt Yojimbo to use Wakizashi against one target.
- 64 above will prompt Yojimbo to use Wakizashi against multiple targets.
The same values are considered for the original Japanese and NTSC versions of the game but there are no recalculations if the overall motivation is less than 80. In addition, Yojimbo may also attack without needing to be paid. With a compatibility parameter of 128, he will do so 13percent of the time. If his compatibility parameter is 255, he will attack for free 25 percent of the time. The calculation made for his free attack is much simpler, which is Yojimbo's compatibility parameter divided by 4 plus a random factor from 0 to 63. If he attacks for free and his compatibility parameter is at 255, he is guaranteed to use either Wakizashi or Zanmato.
- Main article: Yojimbo (Final Fantasy X Boss)
Yojimbo's stats are basic, and he doesn't have any default abilities. The player cannot make him learn any either.
Yojimbo appears as a recruitable character in Final Fantasy Tactics S.
Yojimbo's Final Fantasy Airborne Brigade appearance has a card in Final Fantasy Trading Card Game.
Soul of the fayth concealed beneath a ravine, this aeon strikes and slashes in service of he who has the most gil.
A figure of Yojimbo was made for the Final Fantasy X Action Figure Collection by ArtFX. Listed as No.2 in the series, the Yojimbo figure comes complete with Zanmato and Wakizashi swords, Kozuka throwing knife and Daigoro, as well as a mountable stand for display. A later version of "Dark Aeon Yojimbo" was released using the same figure mold and accessories, as Final Fantasy X-2 merchandise.
A figure of Yojimbo was also made for the Final Fantasy Master Creatures second set, featuring him slashing with Zanmato as Daigoro is pouncing.
Yojimbo (用心棒) means "bodyguard" in Japanese. The kanji (Japanese characters) can also mean "sword/service for hire", befitting his pay-off system.
When Yuna visits Yojimbo's fayth to hire him as an aeon, he calls himself Yojimbo. Despite this, the player can still rename him.
In the Japanese version of the game, Yojimbo's name is written in kanji as "用心棒" in the subtitle of every conversation, while in the battle scenes, and in the aeon menu, it written in hiragana as "ようじんぼう".
Yojimbo is depicted as a samurai. Samurai were the military nobility of medieval and early-modern Japan. They were not just great swordsmen, but also powerful horse archers and martial artists of other fields. Though their status was that above commoners, samurai were bound to forms of etiquette and a way of life known as Bushido, stressing honor to one's devoted and preparing oneself in the face of death.
- When Yuna prays to Yojimbo's fayth in Final Fantasy X, ribbons are briefly shown binding it, which say "SEAL" in Yevon script.
- If the player revisits Yojimbo, the fayth reassures Tidus that he will never be forgotten.
- Look here for a simplified, easy-to-understand mathematical description of Yojimbo and his attacks.
- Look here for a more complex, harder to understand, but much more detailed mathematical description of Yojimbo and his attacks (this includes calculations for PAL/International versions of the game as well, along with probability (Percentile) tables for all versions).