Parry, Deflect, Dodge & Issen Timing Lab

Fine-tune your muscle memory for Genma-grade melee combat. Experiment with windup telegraphs, 3-frame Issen flash windows, Hajiki deflection deflection angles, and active iframe recovery.

Sparring Arena

Ready for Engagement
GENMA MYRMIDON 100%
WAITING FOR STRIKE
Attack Frame Progression (Current Attack: 48 frames / 800ms) Frame: 0 / 48
WINDUP (34f)
ISSEN (3f)
HIT (3f)
REC (8f)
Windup (Telegraph) Issen Critical Window Active Hitbox Recovery / Lag
Reaction Precision Telemetry Last Offset: --
Ready. Use controls or keys (J: Issen, K: Parry, L: Deflect, Shift: Dodge). 0.0ms
Select an enemy pattern or press Trigger Attack [Enter] to spar.

The Mechanics of Melee Counterattacks

In precision action games like Onimusha, Sekiro, and Street Fighter 3rd Strike, handling enemy aggression is divided into four distinct defensive philosophies:

  • Issen (Flash Strike): Attacking precisely 1–3 frames before the enemy weapon makes contact. Results in an instant decapitating critical strike.
  • Hajiki Parry: Guarding right as the blade collides. Absorbs zero chip damage and creates an open stagger window for immediate retaliatory counters (Hajiki-Issen).
  • Deflection: Angling the blade to redirect heavy momentum, draining enemy posture while maintaining positional advantage.
  • Evasive Dodge (Mikiri / Roll): Utilizing invulnerability frames (iframes) to physically bypass overlapping hitboxes.

Frequently Asked Questions

What is the exact millisecond window of an Issen?

At a baseline 60 frames per second, each individual frame lasts exactly 16.67 milliseconds. A standard 3-frame Issen counter window represents an exact target threshold of 50.0 milliseconds. A 1-frame "True Issen" is 16.7ms.

How does sparring speed affect frame data?

Slowing the simulation to 50% or 30% stretches the visual telegraph without altering the internal frame state. This allows practitioners to build subconscious recognition of enemy weapon trajectories and startup posture.

Can I practice with standard keyboard controls?

Yes. The dojo binds J / Space to Issen slash, K to Parry, L to Deflect, Shift to Dodge, and Enter to initiate the enemy attack sequence.

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