To change height in Kaizen on Roblox, open your avatar customization and look for the Build or Scale section, then move the height/body size slider up or down. On mobile, it’s usually under Avatar → Customize → Head and Body → Build; on PC, it’s under Avatar Editor → Body → Scale.

Quick steps

  1. Open Roblox and go to your avatar.
  2. Tap or click Customize.
  3. Go to Head and Body or Body.
  4. Open Build or Scale.
  5. Drag the Height slider to the size you want.

If it does not show

Some avatar types or bundles do not support full scaling, so the height slider may be missing. In that case, switching to a different bundle or body type can make the option appear.

Note for Kaizen

If you meant changing height inside the Kaizen game itself , that may depend on the game’s own systems rather than Roblox avatar settings. The public guides I found mainly describe changing your Roblox avatar height, not an in-game Kaizen-only height mechanic.

Meta description: Learn how to change height in Kaizen Roblox by adjusting your Roblox avatar’s Build or Scale settings.