I couldn’t verify a reliable step-by-step for the hidden zone badge in Roblox Gears from the available public results, but one source notes that in Gears certain badges like Lemonzone or Through Solid Ground unlock passage through their matching badge checkers on both sides of the octagon.

What that means

The badge may be tied to reaching a hidden area, then using the badge-specific checker or trigger once you’ve earned the required badge. The public result I found for Gears does not provide the full hidden-zone walkthrough, so I can’t safely claim the exact route or sequence from it.

Best practical approach

  • Check the in-game badge list or badge checker locations first.
  • Look for octagon-style gates or zone-specific barriers.
  • Revisit any hidden or side areas after earning nearby badges.
  • If the badge is tied to a secret zone, the unlock may require a particular badge first, not just map exploration.

What I can confirm

A public Gears wiki entry explicitly says players with Lemonzone or Through Solid Ground can pass the corresponding badge checker from both sides of the octagon. That is the only directly relevant verified clue I found.

TL;DR: the hidden zone badge likely depends on first earning a related badge, then using the matching checker or barrier in Gears.