Jujutsu Shenanigans, Hitbox, Connect & Velocity Blocks Skill Builder Guide!

Building custom skills in Jujutsu Shenanigans (JJS) has become much more advanced thanks to the latest Skill Builder update. This update introduces new blocks, new branches, and important properties that completely change how skills behave in combat. If you are confused about how Hitbox, Connect, and Velocity blocks work, this guide will explain everything step by step in a clear and practical way.

What Changed in the JJS Skill Builder Update?

The latest update added several major features to the Skill Builder, including:

  • New block types: Hitbox, Connect, and Velocity
  • New branching system for ground and air variants
  • A new property called Use When Obtained

These changes allow creators to design smoother combos, smarter movement skills, and more complex attacks without relying on old workarounds.

Understanding the Velocity Block

The Velocity block controls player movement during a skill. It uses a simple XYZ system:

  • X: Left and right movement
  • Y: Up and down movement
  • Z: Forward and backward movement

You can also use negative values to move in the opposite direction.

Important Velocity Settings

  • Time: How long the velocity effect lasts
  • Fade: Smoothly starts and stops the movement
  • Track: Makes the movement follow the camera direction

Velocity is commonly used for dash attacks, launchers, air movement, and knockback effects.

How Hit Works Inside Velocity

The Hit value determines who gets affected by the velocity:

  • -1 (default): Affects only yourself
  • 0 or higher: Pushes the opponent instead

This is useful for knockback attacks, launches, or pushing enemies in a specific direction after getting hit.

Ragdoll Settings Explained

  • Ragdoll Time: How long the enemy stays ragdolled
  • True Ragdoll: Forces full ragdoll behavior without interruption

These settings are often paired with velocity and hitbox blocks for combo finishers.

How the Connect Block Works

The Connect block allows signals to pass between blocks, making logic-based interactions possible.

Key points about the Connect block:

  • It does not work directly with logic blocks
  • It must receive a logic signal
  • It can control activation timing, range, and duration

You can use Connect blocks to trigger effects only when certain conditions are met, such as distance or timing.

Hitbox Block Breakdown

The Hitbox block defines how an attack interacts with enemies.

Main Hitbox Settings

  • Size: Determines how large the hitbox is
  • Stun: Duration the enemy is stunned
  • Damage: Amount of damage dealt
  • Attack Type: Melee, Dismantle, Adaptation, and more

Additional Hitbox Options

  • Blockable: Whether the attack can be blocked
  • 360 Hit: Hits enemies from all directions
  • Cancel Enemy: Cancels enemy moves when hit

Hitboxes are essential for creating reliable attacks and combo starters.

Use When Obtained Property Explained

The Use When Obtained property allows a skill to activate instantly when acquired.

A good example is a grab-type move:

  • Player obtains the move
  • The attack triggers immediately
  • The effect happens only once

This property is perfect for scripted grabs, instant counters, or cinematic attacks.

New Branch System (Ground and Air Variants)

Branches now allow skills to behave differently depending on player state:

  • Air Variant activates while airborne
  • Ground Variant activates after landing

This system makes it possible to create advanced combo routes and conditional attacks based on positioning.

Practical Velocity Example

If you want to:

  • Launch yourself upward: increase Y value
  • Dash forward: increase Z value
  • Pull backward: use negative Z

Always adjust velocity time and fade to keep movement smooth and controlled.


The new Hitbox, Connect, and Velocity blocks in Jujutsu Shenanigans open the door to much deeper skill design. While the system may feel complex at first, understanding how each block works will let you create smoother combos, better movement skills, and more balanced abilities.

By mastering these new tools and properties, you can build skills that feel polished, responsive, and competitive. Take time to experiment, test different values, and combine blocks properly to get the best results from the updated Skill Builder.

Jay: A Content writer for Roonby.com Contact me on Jason@roonby.com, we can't reply to gmail for some reason.

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