Sphere Grid The Sphere Grid is the ability and character development system in " Final Fantasy X " . It is a roughly circular grid of interconnected nodes arranged in smaller circular clusters , containing all the abilities and special skills the player characters can learn . The name of the system is used both to refer to the grid ' s design , and to the use of spheres to activate the nodes . In " Beyond Final Fantasy " feature included with the PAL and International versions of " Final Fantasy X " , Yoshinori Kitase explains the purpose behind the Sphere Grid is to give players an interactive means of increasing their characters ' attributes , so they can observe the development of those attributes firsthand . In general , there are three types of sphere grids : Completing a character ' s Sphere Grid in the " Final Fantasy X HD Remaster " version earns the Sphere Master trophy . Completing all characters ' Sphere Grids earns Perfect Sphere Master . The player must have every node active with a stat boost or an ability . AP and Sphere Levels . At the end of each battle , every character in the party that took at least one full turn in battle will earn AP . Characters who are switched out their first turn , KO ' d or petrified at the end of the battle , will not gain AP . For example , if the starting line - up is Kimahri , Wakka and Rikku , and Wakka is switched out his first turn and does not return , he will gain no AP because he did not take a full turn . Similarly , if Wakka is switched out for Auron , and Auron is immediately switched back out , he will also not earn AP . In the above example , if Kimahri acts first in battle and defeats all enemies on his turn , Rikku and Wakka will receive no AP because they did not get a turn . If the player defeats an enemy party using an aeon , Yuna will be treated as having taken a turn and will earn AP , even if she summoned the aeon on her first turn . When enough AP is earned , the character gains a Sphere Level ( " S . Lv " ) . The number of AP needed to generate a S . LV progressively increases until the player have got 101 S . LV , and thereafter always will require 22 , 000 AP to generate a new S . LV . When moving about the Sphere Grid , the character may move one node forward for each S . LV they have . The player does not need to activate a node to pass by it . Regardless of if a node was activated or not , when the player passes it a band of color appears connecting their current node to the node they just left , to show they have already been down this path . Moving around paths already connected allows the character to move four nodes for every S . LV they have . As is the case in most previous " Final Fantasy " games , at the beginning each character is set with certain strengths and weaknesses , demonstrated by the variety of nodes in their section of the Sphere Grid . Due to the function of the Sphere Grid , however , the player has a choice of going out of his or her way to put the character down a different path . The character - specific sections of the Sphere Grid merge into each other at certain points , allowing the player to take the character down the grid of another character if they so choose . The character - specific sections of the grid are separated by locked nodes that cannot be passed , but once they are opened , become as any other empty node , allowing free movement . Ultimately , every node on the Sphere Grid may be accessed by every character . Sections of the Grid . The Sphere Grid is roughly divided into seven sections , one for each member of the party . When a character is selected , his or her path will be highlighted in the character ' s grid color . Each node has seven invisible marks around its border and when a character activates the node , the corresponding mark becomes visible and is colored the same as the character ' s grid color . These marks can be viewed no matter which character is currently selected . Tidus . Tidus ' s grid has a good balance of Strength and Accuracy , as well as decent Evasion and Agility . Thus he is adept at killing lightly - armored enemies , but flying enemies often have too much Evasion for him to hit , and most of his weapons cannot pierce through armored enemies . Tidus learns special abilities and White Magic that affect the turn order of his allies and enemies , such as Haste , Slow and Delay Buster . He has party support abilities like Cheer and Flee . At the end of his section is Quick Hit . In the International , PAL and HD Remaster versions , it also includes Extract Speed . Tidus ' s grid section runs into Yuna ' s , and his grid color is aqua . Yuna . Yuna has low Strength and Defense , but has the highest Magic of the party , and strong Evasion and Agility . Yuna ' s grid contains many healing White Magic spells , such as Cure spells , Regen and Esuna , and buffing spells like Reflect and Shell . Being the game ' s Summoner , the stats of Yuna ' s aeons rise as hers increase . At the end of her section is the spell Holy . Yuna ' s grid section runs into Rikku ' s , and her grid color is white . Rikku . Rikku has the highest Agility and her grid has many HP and Agility nodes . Rikku has average Strength and low average Magic but learns a variety of support abilities , such as Steal , Mug , Spare Change and Copycat . Her grid contains the White Magic spell Full - Life . At the end of her section is the ability Bribe . In the International , PAL and HD versions , it also includes the Nab Gil and Quick Pockets abilities . Rikku ' s grid section runs into Lulu ' s , and her grid color is green . Lulu . Lulu , as a classic Black Mage , has low Strength , Accuracy and Agility , but high Magic and the highest Magic Defense and Evasion . She also has the party ' s highest Defense , which is uncharacteristic of the traditional Black Mage . Black Magic such as the Fire , Blizzard , Thunder , and Water series are in her section , along with other spells like Bio and Demi . Lulu ' s section also has the support skills Focus , Reflex and Doublecast . At the end of her section is the spell Flare . Lulu ' s grid section runs into Wakka ' s , and her grid color is purple . Wakka . Wakka has high HP , Strength and Accuracy , but average Magic , MP , and Agility , along with low average Evasion and low Magic Defense . Wakka learns many special attacks that let him inflict status ailments on enemies , such as Dark Attack and Silence Attack . Wakka ' s grid also contains two Black Magic spells , Drain and Osmose . At the end of his section is the special attack Triple Foul . In the International , PAL and HD Remaster versions , it also includes Extract Ability . Wakka ' s section runs into Auron ' s , and his grid color is yellow . Auron . Auron ' s section has many Strength , Defense and HP nodes , but lacks Evasion , Accuracy and Agility . His section includes " break " abilities to lower enemy stats , like Power Break and Armor Break , and defensive abilities such as Sentinel and Guard . At the end of his section are the special abilities Threaten and Entrust . In the International , PAL and HD Remaster versions , it also includes Extract Power and Full Break . Auron ' s section runs into Tidus ' s grid , thus closing the circle of Tidus - Yuna - Rikku - Lulu - Wakka - Auron . His grid color is red . Kimahri . Kimahri ' s section is in the center of the Sphere Grid and contains a variety of nodes . As a Blue Mage , Kimahri ' s grid directly connects to the grids of every other character except Auron , allowing the player to customize his stats as they wish once they can access the proper Key Spheres separating the grids . Kimahri ' s section contains the ability Lancet which allows him to learn Ronso Rage s from certain enemies , and support abilities like Jinx and Scan . At the center of his section is the Black Magic Ultima . In the International , PAL and HD Remaster versions , it also includes Extract Mana . Kimahri ' s grid color is dark blue . Expert Mode . In the International , PAL and HD Remaster versions , an Expert option is available at the beginning of the game . The difference between Standard and Expert is that in the Expert mode each character starts in the middle of a completely different grid design . The player must decide which path the character will follow . The abilities in both grids are the same ( the standard grid is slightly different from the regular grid , with extra branches and nodes to fit the new abilities ) , but the Expert grid has fewer nodes in total than the Standard grid ( 68 less ) , but it still contains enough nodes to maximize the characters ' statistics , to exception in three stats at maximum , unlike the Standard grid which are two . Spheres . Activating any node on the grid requires a sphere . Early on , the player only has access to the basic red spheres , but as they progress many more types of sphere become available . Though all nodes need a sphere to be activated , not all spheres are used only to activate a node . The types of sphere are as follows : Customization . There is an option to customize one ' s personal Sphere Grid . By doing so , one would be able to max out the characters ' stats . If the player only activates the nodes that are available by default , the characters will not max on all of the stats . Some nodes will either have + 1 , + 2 , + 3 and ( rarely ) + 4 , as well as + 200 HP and + 20 MP . By using the Clear Sphere ( available at the Monster Arena ) the player can clear out the weaker nodes and activate any of the purple spheres of the player ' s choice ( HP , MP , Strength , Defense , Magic Power , Magic Defense , Agility , Evasion , Accuracy and Luck ) . Once all the weak nodes have been removed and replaced with the + 4 , + 300 HP , and + 40 MP , it is possible to max a number of stats . It is not possible to max out all stats . Special Spheres . The special spheres to help the player customize the Sphere Grid are received from the monsters at the Monster Arena . The following chart explains what they drop and how to acquire them . The Fortune Spheres that activate Luck nodes are obtained from the Earth Eater Original Species , unlocked by creating two Area Conquest monsters .