ONIMUSHA

Skills / Combat skills

Issen

A powerful attack that can be unleashed when determining the exact moment an enemy attack will land. Tricky to execute, but capable of inflicting serious damage.

Skill tree
Issen
Upgrade cost
No upgrade currency
Story unlock
During The Ruckus at Rendaino
Activation
Press Light attack or Heavy attack Just Before Being Hit
Chain target radius
15 game units
Chain dash speed
30 game units/sec
Chain start delay
0.7 sec
Break Issen search radius
10 game units
Counter Issen soul generation
1.65x
Chain Issen soul generation
1.65x

Reference tables

6 tables

Unlock path

Buy these skills in order. Each row shows that skill's price; totals include the target and every earlier skill on this path.

StepSkillCostUnlock requirement
1IssenNo upgrade currencyDuring The Ruckus at Rendaino

Issen family comparison

The three Issen routes use different openings. Values shown here are taken from their released combat parameters.

VariantTriggerReach or timingConfirmed reward
Counter IssenAttack immediately before an enemy hit landsEnemy-hit timing1.65x soul generation
Chain IssenAttack again after a successful Issen15 unit target search1.65x soul generation
Break IssenUse the dedicated finisher after breaking enemy posture10 unit searchDedicated posture-break finisher

Chain Issen timing

Timing is measured in frames before and after the hit frame.

DifficultyBeforeAfterBefore with Two CelestialsAfter with Two Celestials
Standard315318
Easy317320
Hard315318

Chain Issen movement and target growth

LevelMaximum targetsTarget searchDash speedStart delay
1215 units30 units/sec0.7 sec
2315 units30 units/sec0.7 sec
3415 units30 units/sec0.7 sec

Break Issen targeting envelope

StageHorizontal reachVertical reachRun triggerSelection slow frames
Initial acquisition20 units3 units2.8 unitsNo selection phase
Follow-up selection15 units3 units2.8 units180

Soul generation formulas

AttackFormulaMultiplier
Counter IssenBase generated souls x 1.651.65x
Chain IssenBase generated souls x 1.651.65x

Connected records

ReferenceIn-game skill tree and linked mechanic valuesCheckedSeptember 3, 2026Source policy
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