At first, there is a seal around the grid preventing you from obtaining the more expensive abilities. This can be removed by progressing through the Money Island story.

Number	Ability	Decription	Cost
1	Pride of the Vermilion Bird	When you are at critical health, your heat gauge fills over time. However, it only fills until it gets to 2nd gear	30,000
2	Attack Power Up #1	Damage of regular attacks and heat actions for the Thug style increases	2,000,000
3	Pride of the White Tiger	Your heat gauge increases when you taunt an enemy	30,000,000
4	Fighting Knowledge [Fighting Spirit]	Counter attack damage increases while you are in heat mode	30,000,000
5	Fighting Knowledge [Off The Charts]	Your first attack sends an enemy flying and puts you in 3rd gear heat	30,000,000
6	Attack Power Up #2	Damage of regular attacks and heat actions for the Thug style increases	100,000,000
7	Fighting Knowledge [Hard Hitter]	Can grab an enemy and perform a combo attack when in 2nd gear heat (square after grabbing an enemy)	100,000,000
8	Pride of the Black Tortoise	Defending against enemy attacks with L1 builds you heat gauge up. But only until it gets to 2nd gear.	100,000,000
9	Attack Power Up #3	Damage of regular attacks and heat actions for the Thug style increases	400,000,000
10	Fighting Knowledge [Super Fighting Spirit]	Counter attack damage increases even further when in 3rd gear heat	400,000,000
11	Secret of the Drunk King [Angry Drinker]	When you are intoxicated, your heat gauge fills when you are hit by enemies	400,000,000
12	Pride of the Blue Dragon	Defence increases when in heat mode	400,000,000
13	Attack Power Up #4	Damage of regular attacks and heat actions for the Thug style increases	1,000,000,000
14	Fighting Knowledge [Competitive Spirit]	You cannot be defeated when you are in 3rd gear heat. But when you take damage that would normally take you to zero health, your lose all your heat	1,000,000,000
15	Pride of the Yellow Dragon	When in 3rd gear, health restores when you perform a heat action	1,000,000,000
16	Secret of the Drunk King [Drunkard]	When intoxicated and are at full health, heat action damage is greatly increased	1,000,000,000
17	Secret of the Drunk King [Best Medicine]	Drinking alcohol restores a lot of health	1,000,000,000
18	Secret of the Drunk King [Big Drunken Feeling]	When intoxicated, the lower your health the more powerful your attacks	1,000,000,000
19	Secret of the Drunk King [Unconciousness]	When intoxicated, you cannot become dizzy or paralysed	1,000,000,000
20	Fighting Spirit Running Kick	Press Triangle while running	400,000
21	Powerful Knee Strike	Hold Down Triangle	2,000,000
22	Re-Guard #1	Can immediately guard again after your guard is broken. You can only use this ability when you are in 1st gear	30,000,000
23	Re-Guard #2	Can immediately guard again after your guard is broken. You can use this in ability in 1st or 2nd gear	30,000,000
24	Sway Blow	Press Triangle while dodging to attack	30,000,000
25	Grabbing Thrust Punch	Press Circle after a Square - Square - Square - Triangle combo	100,000,000
26	Body Counter	Defend with L1 and press Triangle as an enemy attacks	100,000,000
27	Double Finishing Blow	Press Triangle after a Square - Square - Square - Triangle combo	400,000,000
28	Kick Combo	Press Triangle 3 times in a row. Using this ability consumes heat	400,000,000
29	Fighting Spirit Grab Escape	Press Circle when grabbed by an enemy	1,000,000,000
30	Counter Hook	While holding R1, press Triangle as an enemy attacks you	1,000,000,000
31	Max Health Up [Small]	Increases maximum health	400,000
32	Judo Knowledge	Reduces damage received from enemy throws	2,000,000
33	Max Health Up [Medium]	Increases maximum health	2,000,000
34	Max Health Up [Large]	Increases maximum health	100,000,000
35	Steel Body Knowledge	Attacks that would usually knock you to the ground will not do so when you are in 3rd gear heat	100,000,000
36	Sway Distance Up	Increases dodging distance	100,000,000
37	Max Health Up [Extra Large]	Increases maximum health	400,000,000
38	Max Health Up [Maximum]	Increases maximum health	1,000,000,000
39	Heat Reduction Control [Time] #1	Reduces the amount at which your heat gauge drains over time	2,000,000
40	Heat Reduction Control [Damage] #1	Reduces the amount at which your heat gauge drains when you take damage	2,000,000
41	Willpower Counterattack Mastery	Press Triangle as you are rising up from the ground	30,000,000
42	Heat Rate of Increase Up #1	Increases the rate at which your heat gauge fills when attacking enemies	100,000,000
43	Heat Rate of Increase Up #2	Increases the rate at which your heat gauge fills when attacking enemies	400,000,000
44	Heat Reduction Control [Damage] #2	Reduces the amount at which your heat gauge drains when you take damage	400,000,000
45	Heat Reduction Control [Time] #2	Reduces the amount at which your heat gauge drains over time	1,000,000,000
46	Powerful Willpower Counterattack	Hold down Triangle or Square after being hit	N/A
47	Face Twist Mastery	When in 3rd gear, press Triangle in front of an enemy who is guarding	N/A
48	Knife Arm Break Mastery	Press Triangle when an enemy holding a one-handed bladed weapon attacks you	N/A
49	Rear Wall Mastery	When in 3rd gear, press Triangle when your back is against the wall	N/A
50	Finishing Blow Mastery	When in 3rd gear, press Triangle after a Square - Square - Square - Triangle combo	N/A

 

At first, there is a seal around the grid preventing you from obtaining the more expensive abilities. This can be removed by progressing through the Money Island story.

Number	Ability	Description	Cost
1	Attack Power Up #1	Damage of regular attacks and heat actions for the Rush style increases	400,000
2	Hawk Spirit	Your heat gauge increases when you taunt an enemy	2,000,000
3	Attack Power Up #2	Damage of regular attacks and heat actions for the Rush style increases	30,000,000
4	Pride of the Vermilion Bird	When you are at critical health, your heat gauge fills over time. However, it only fills until it gets to 2nd gear	30,000,000
5	Eagle Spirit	Increases damage dealth to dizzy enemies (not including heat actions)	100,000,000
6	Owl Spirit	Timing your weaving (L1) well builds up heat	100,000,000
7	Attack Power Up #3	Damage of regular attacks and heat actions for the Rush style increases	400,000,000
8	Secret of the Boxing King [Final Round]	Attack power increases when you are at critical health	400,000,000
9	Secret of the Boxing King [Full Gear]	Attack power increases when you are in 3rd gear	400,000,000
10	Weapon Master [Knuckle Dusters]	While in 1st gear, knuckle duster weapons have unlimited endurance	400,000,000
11	Attack Power Up #4	Damage of regular attacks and heat actions for the Rush style increases	1,000,000,000
12	Secret of the Boxing King [Flawless]	Attack power is increased at the start of a fight and lasts until you take damage	1,000,000,000
13	Secret of the Boxing King [Champion]	When at critical health, heat actions do a lot more damage	1,000,000,000
14	Secret of the Boxing King [Red Fighter]	When at critical health, your charged attacks cannot be blocked	1,000,000,000
15	Rising Tornado	Press Square while on the ground	400,000
16	Charged Fist	Hold down Triangle after a Square attack punch	2,000,000
17	Cancel Weaving	Move the analogue stick and press X during a Square attack	2,000,000
18	Sway Abiity Up #1	Enhances evasion ability	30,000,000
19	Feint Punch	Move the left analogue stick in the direction Kiryu's back is facing and press Triangle	30,000,000
20	Sway Blow	Press Triangle while dodging to attack	30,000,000
21	Step Out	Allows you to evade immediately after a Square combo	100,000,000
22	Float Re-Guard #2	Press L1 when an enemy attacks you after you guard is broken (works in any gear)	400,000,000
23	Weaving to Sway	Move the left analogue stick and press X while you are weaving	400,000,000
24	Bird of Prey Knowledge [Cool Start]	At the start of a battle, evading an enemy attack while in 1st gear will fill up your heat gauge a lot	400,000,000
25	Rush Combo 7	Extends the Square combo to 7 attacks	400,000,000
26	Charged Leg	Hold down Triangle after a Square attack kick	400,000,000
27	Sway Abiity Up #2	Enhances evasion ability	1,000,000,000
28	Bird of Prey Knowledge [Nightjar]	Timing a dodge well (just as an enemy is about to hit you) will position you facing the enemy's back (press X while moving the left analogue stick)	1,000,000,000
29	Bird of Prey Knowledge [Shadow]	When in 1st gear, taunting builds up the heat gauge and makes enemies defend (only works against enemies who usually block)	1,000,000,000
30	Bird of Prey Knowledge [Power Blow]	Makes it harder for your stance (for example, when performing a charged attack) to be broken when attacked by enemies	1,000,000,000
31	Rush Combo 8	Extends the Square combo to 8 attacks	1,000,000,000
32	Max Health Up [Small]	Increases maximum health	400,000
33	Max Health Up [Medium]	Increases maximum health	30,000,000
34	Sway Distance Up	Increases dodging distance	100,000,000
35	Max Health Up [Large]	Increases maximum health	100,000,000
36	Max Health Up [Extra Large]	Increases maximum health	400,000,000
37	Max Health Up [Maximum]	Increases maximum health	1,000,000,000
38	Heat Rate of Increase Up #1	Increases the rate at which your heat gauge fills when attacking enemies	2,000,000
39	Heat Reduction Control [Time] #1	Reduces the amount at which your heat gauge drains over time	2,000,000
40	Fist Smash Mastery [Wall]	Press Triangle when an enemy attacks you and your back is against a wall	30,000,000
41	Fist Soar Mastery	Press Triangle while holding R1 and have Knuckle Dusters equipped	100,000,000
42	Heat Rate of Increase Up #2	Increases the rate at which your heat gauge fills when attacking enemies	400,000,000
43	Heat Reduction Control [Time] #2	Reduces the amount at which your heat gauge drains over time	1,000,000,000
44	Fist Smash Mastery [Elbow]	Press Triangle when an enemy attacks you	1,000,000,000
45	Sword Smash Mastery	Press Triangle when an enemy attacks you with a sword and you have Knuckle Dusters equipped	1,000,000,000
46	Swallow Spirit	Heat gauge builds up when you dodge just as an enemy attacks	N/A
47	Damage Weaving	Press either L1 or X while moving the left analogue stick when taking damage	N/A
48	Float Re-Guard #1	Press L1 when an enemy attacks you after you guard is broken (only works in 1st gear)	N/A
49	Counter Sway	Press Circle while holding R1 as an enemy attacks you	N/A
50	Rotating Gunfire Mastery	When in 3rd gear, press Triangle in front of a flinching enemy (you know, when they back off in fear)	N/A

 

At first, there is a seal around the grid preventing you from obtaining the more expensive abilities. This can be removed by progressing through the Money Island story.

Number	Ability	Description	Cost
1	Attack Power Up #1	Damage of regular attacks and heat actions for the Destroyer style increases	400,000
2	Attack Power Up #2	Damage of regular attacks and heat actions for the Destroyer style increases	100,000,000
3	Pride of the Black Tortoise	Defending against enemy attacks with L1 builds you heat gauge up. But only until it gets to 2nd gear.	400,000,000
4	Secret of the Destruction King [Meal Man]	Effects of food recovery items in greatly enhanced	400,000,000
5	Secret of the Destruction King [Abdomen Power]	Attack power is greatly enhanced while at full health	400,000,000
6	Attack Power Up #3	Damage of regular attacks and heat actions for the Destroyer style increases	400,000,000
7	Attack Power Up #4	Damage of regular attacks and heat actions for the Destroyer style increases	1,000,000,000
8	Weapon Master [Defence]	While in heat mode, weapons are indestructible when defending with them	1,000,000,000
9	Pride of the Blue Dragon	Defence increases when in heat mode	1,000,000,000
10	Secret of the Destruction King [First Strike]	Your first weapon attack against an enemy at the start of battle greatly fills your heat gauge (only when you are in 1st gear)	1,000,000,000
11	Secret of the Destruction King [Soft Body]	When in 3rd gear, it is harder for enemies to knock you down and damage from throws is reduced	1,000,000,000
12	Secret of the Destruction King [Enduring Cure]	Taunting when in heat mode will restore health at the cost of a lot of heat	1,000,000,000
13	Guard Rush	Press Triangle while guarding to rush forward	400,000
14	Charged Rush Attack	Hold down Triangle	2,000,000
15	Cancel Resistance	During a Square combo, press L1 just before an enemy attack hits to activate Resistance Guard	30,000,000
16	Bash Lariat	When in 3rd gear, while using Resistance Guard (L1) press Square just as an enemy attacks	100,000,000
17	Bearhug	When in 3rd gear, while using Resistance Guard (L1) press Circle just as an enemy attacks	400,000,000
18	Rush Bearhug	When in 3rd gear, while using Resistance Guard (L1) press Triangle just as an enemy attacks	400,000,000
19	Tornado Throw	When in 2nd gear, press Circle while dodging	1,000,000,000
20	Max Health Up [Small]	Increases maximum health	400,000
21	Golden Arm	Attack power increases when you are in heat mode	2,000,000
22	Max Health Up [Medium]	Increases maximum health	2,000,000
23	Iron Abs	When in 3rd gear, even gunshots and bladed weapons do not knock you down while you are using Resistance Guard (L1)	30,000,000
24	Max Health Up [Large]	Increases maximum health	30,000,000
25	Steel Abs	When in heat mode, even gunshots and bladed weapons do not knock you down while you are using Resistance Guard (L1)	100,000,000
26	Max Health Up [Extra Large]	Increases maximum health	100,000,000
27	Indestructible Arm	When in heat mode, it's harder for enemies to make you flinch while you perform a rush combo	400,000,000
28	Steel Endurance	Resistance Guard defence boost is increased	100,000,000
29	Max Health Up [Maximum]	Increases maximum health	400,000,000
30	Max Health Up [Ultra-Maximum]	Increases maximum health	400,000,000
31	Experience of the Ferocious Beast [Throw Power]	When in heat mode, the damage dealt when throwing enemies or objects is increased	400,000,000
32	Experience of the Ferocious Beast [Drawn Fangs]	When using a charged rush while guarding against an enemy using a weapon, you send their weapon flying out of their hands	400,000,000
33	Golden Abs	When in 3rd gear, timing your guards (L1) right (just as an enemy attacks) prevents you from taking any damage	1,000,000,000
34	Max Health Up [Ultimate]	Increases maximum health	1,000,000,000
35	Experience of the Ferocious Beast [Grip]	When in heat mode, lariat attacks crush an enemy's guard (Square - Square - Triangle)	1,000,000,000
36	Experience of the Ferocious Beast [Exploding Body]	When in 3rd gear, Resistance Guard will knock weapons out of an enemy's hands when they attack you (though not bladed weapons)	1,000,000,000
37	Indescructible Endurance	Resistance Guard defence boost is greatly increased	1,000,000,000
38	Heat Reduction Control [Damage] #1	Reduces the amount at which your heat gauge drains when you take damage	2,000,000
39	Heat Reduction Control [Time] #1	Reduces the amount at which your heat gauge drains over time	30,000,000
40	Heat Rate of Increase Up #1	Increases the rate at which your heat gauge fills when attacking enemies	30,000,000
41	Destroyer Mastery [Endurance Limit]	When in 3rd gear, press R1 and Triangle while using Resistance Guard (L1) when an enemy attacks you	100,000,000
42	Destroyer Mastery [Twin Pole Stab]	Pick up a pole weapon and go near an enemy and press Triangle	100,000,000
43	Heat Reduction Control [Damage] #2	Reduces the amount at which your heat gauge drains when you take damage	400,000,000
44	Heat Rate of Increase Up #2	Increases the rate at which your heat gauge fills when attacking enemies	1,000,000,000
45	Heat Reduction Control [Time] #2	Reduces the amount at which your heat gauge drains over time	1,000,000,000
46	Weapon Guard Rush	While holding a large weapon, hold L1 and then press Triangle	N/A
47	Iron Endurance	Resistance Guard defence boost is increased	N/A
48	Crash Hammer	While in 3rd gear, press Triangle the moment an enemy hits you when you are using Resistance Guard	N/A
49	Destroyer Mastery [Wall Press]	While holding a large weapon, face towards a wall and press Triangle	N/A
50	Destroyer Mastery [Penetration]	When in 3rd gear and are near at least 4 enemies, press Triangle after the Square - Square - Triangle combo	N/A

 

You unlock the secret fighting style by completing the Money Island story.

At first, there is a seal around the grid preventing you from obtaining the more expensive abilities. This can be removed by getting the Limit Break upgrade via CP Exchange.

When you purchase all 50 upgrades on the grid, the grid levels up and you can purchase them again for further upgrades. I believe this can go all the way up to level 99, but I'm not 100% sure what the level cap is.

Number	Ability	Description	Cost
1	Heat Gauge Rate of Increase [Ultimate] #1	Increases rate at which heat gauge builds for all styles	10,000,000
2	Heat Gauge Rate of Increase [Ultimate] #2	Increases rate at which heat gauge builds for all styles	50,000,000
3	Heat Gauge Rate of Increase [Ultimate] #3	Increases rate at which heat gauge builds for all styles	100,000,000
4	Heat Gauge Rate of Increase [Ultimate] #4	Increases rate at which heat gauge builds for all styles	200,000,000
5	Heat Gauge Rate of Increase [Ultimate] #5	Increases rate at which heat gauge builds for all styles	200,000,000
6	Heat Gauge Rate of Increase [Ultimate] #6	Increases rate at which heat gauge builds for all styles	200,000,000
7	Heat Gauge Rate of Increase [Ultimate] #7	Increases rate at which heat gauge builds for all styles	500,000,000
8	Heat Gauge Rate of Increase [Ultimate] #8	Increases rate at which heat gauge builds for all styles	500,000,000
9	Heat Gauge Rate of Increase [Ultimate] #9	Increases rate at which heat gauge builds for all styles	800,000,000
10	Heat Gauge Rate of Increase [Ultimate] #10	Increases rate at which heat gauge builds for all styles	800,000,000
11	Heat Gauge Rate of Increase [Ultimate] #11	Increases rate at which heat gauge builds for all styles	800,000,000
12	Heat Gauge Rate of Increase [Ultimate] #12	Increases rate at which heat gauge builds for all styles	1,000,000,000
13	Heat Gauge Rate of Increase [Ultimate] #13	Increases rate at which heat gauge builds for all styles	1,000,000,000
14	Heat Gauge Rate of Increase [Ultimate] #14	Increases rate at which heat gauge builds for all styles	1,000,000,000
15	Attack Power Enhancement [Ultimate] #1	Increases attack power for all styles	10,000,000
16	Attack Power Enhancement [Ultimate] #2	Increases attack power for all styles	50,000,000
17	Attack Power Enhancement [Ultimate] #3	Increases attack power for all styles	100,000,000
18	Attack Power Enhancement [Ultimate] #4	Increases attack power for all styles	200,000,000
19	Attack Power Enhancement [Ultimate] #5	Increases attack power for all styles	200,000,000
20	Attack Power Enhancement [Ultimate] #6	Increases attack power for all styles	200,000,000
21	Attack Power Enhancement [Ultimate] #7	Increases attack power for all styles	500,000,000
22	Attack Power Enhancement [Ultimate] #8	Increases attack power for all styles	500,000,000
23	Attack Power Enhancement [Ultimate] #9	Increases attack power for all styles	800,000,000
24	Attack Power Enhancement [Ultimate] #10	Increases attack power for all styles	800,000,000
25	Attack Power Enhancement [Ultimate] #11	Increases attack power for all styles	800,000,000
26	Attack Power Enhancement [Ultimate] #12	Increases attack power for all styles	1,000,000,000
27	Attack Power Enhancement [Ultimate] #13	Increases attack power for all styles	1,000,000,000
28	Attack Power Enhancement [Ultimate] #14	Increases attack power for all styles	1,000,000,000
29	Max Health Enhancement [Ultimate] #1	Increases max health	10,000,000
30	Max Health Enhancement [Ultimate] #2	Increases max health	50,000,000
31	Max Health Enhancement [Ultimate] #3	Increases max health	100,000,000
32	Max Health Enhancement [Ultimate] #4	Increases max health	200,000,000
33	Max Health Enhancement [Ultimate] #5	Increases max health	200,000,000
34	Max Health Enhancement [Ultimate] #6	Increases max health	200,000,000
35	Max Health Enhancement [Ultimate] #7	Increases max health	500,000,000
36	Max Health Enhancement [Ultimate] #8	Increases max health	500,000,000
37	Max Health Enhancement [Ultimate] #9	Increases max health	800,000,000
38	Max Health Enhancement [Ultimate] #10	Increases max health	800,000,000
39	Max Health Enhancement [Ultimate] #11	Increases max health	800,000,000
40	Max Health Enhancement [Ultimate] #12	Increases max health	1,000,000,000
41	Max Health Enhancement [Ultimate] #13	Increases max health	1,000,000,000
42	Max Health Enhancement [Ultimate] #14	Increases max health	1,000,000,000
43	Heat Action Power [Ultimate] #1	Increases heat action damage for all styles	1,000,000,000
44	Heat Action Power [Ultimate] #2	Increases heat action damage for all styles	1,000,000,000
45	Heat Action Power [Ultimate] #3	Increases heat action damage for all styles	1,000,000,000
46	Heat Action Power [Ultimate] #4	Increases heat action damage for all styles	1,000,000,000
47	Heat Action Power [Ultimate] #5	Increases heat action damage for all styles	1,000,000,000
48	Heat Action Power [Ultimate] #6	Increases heat action damage for all styles	1,000,000,000
49	Heat Action Power [Ultimate] #7	Increases heat action damage for all styles	1,000,000,000
50	Heat Action Power [Ultimate] #8	Increases heat action damage for all styles	1,000,000,000