I couldn’t verify a specific, current method for getting “Ruby Puffer” in Blue Lock Rivals from the information available, and the search results only showed broad mentions of Blue Lock cosmetics plus unrelated Roblox items. The safest answer is that it may be a limited cosmetic or event item, so the exact unlock method is likely tied to the game’s current event, shop rotation, or a quest rather than a permanent standard drop.

What to check

  • The in-game shop and limited-time cosmetics section.
  • Any active event tab or reward track.
  • Official Blue Lock Rivals social posts or community announcements for the current rotation.
  • Recent community clips, which suggest players are discussing a “Ruby Puffer Bluelock” topic on social platforms, but not a confirmed method.

Why this is unclear

The available results don’t confirm an official “Ruby Puffer” guide, and one result points to a different Roblox “Puffy Puffer Fish” item, which is not the same thing. Another result lists “Golden Puffer” among Blue Lock Rivals cosmetics, which suggests “Puffer” may be part of a cosmetic naming line rather than a standalone grindable item.

Best next step

Open the game’s cosmetics or event menu and look for the exact item name, then match it against the current rotation or requirements shown there. If the item is tradeable or event-locked, the game UI should usually say so directly.

Would you like me to help you interpret the exact in-game wording if you paste it here?