Buff doesn’t appear to have a direct way to link to a Roblox account for earning Robux, because Buff currently does not support Roblox for rewards or account linking in that sense.

If you mean a Roblox parent account link , Roblox does let you link a parent account through Settings > Parental Controls > Add parent, but that is separate from Buff.

What this means

  • You generally can’t connect Buff to Roblox to transfer points or earn Robux through Roblox directly.
  • Some older videos mention Buff and Robux, but those are not reliable for current account-linking instructions.
  • Roblox’s official linking feature is for parental access and approval, not for third-party rewards apps.

If you meant something else

  • For a Roblox avatar item named Buff Guy , that is just a catalog bundle on Roblox, not a Buff app connection.
  • For the Buff app itself, you’d need to use its own account setup and reward system rather than a Roblox login link.

Would you like a step-by-step guide for linking a Roblox parent account instead?