Find the Brainrot: How to Get Gub, the Secret Pigeon

Gub is one of the Secret unlocks in Find the Brainrot, and it is not something you stumble across while sweeping the map. It is a delivery job. A letter spawns in a mailbox on the main map, and the recipient is an alien sitting inside a UFO above the moon.

Quick answer: Take the strange letter from the mailbox outside the glass cafe on the main map, ride the rocket to the moon, walk until a UFO beams you up, then choose “Give envelope” on the alien inside to unlock Gub.

What Gub is and why the quest has two locations

Gub is a pigeon dressed as a mail carrier. It wears a mailman cap, has a pouch on its chest, a backpack, and a parcel stamped “EXPRESS #6767”. The character reads as a joke about postal delivery, and the unlock plays that joke straight.

The important structural detail is that the chain spans two areas. You pick up the item on the main map and hand it over off-world. Nothing on the moon triggers unless you are already carrying the envelope, so the order is fixed.

Stage	Where	What happens
Pick up	Mailbox by the glass cafe, main map	“Open letter” gives you “A strange letter”
Travel	Rocket pad with the Brazil flag	Countdown from 5 launches you to the moon
Contact	Moon surface	A UFO appears and beams you inside
Hand off	Inside the UFO	“Give envelope” on the alien unlocks Gub

How to get Gub in Find the Brainrot

Head to the glass-walled cafe building on the main map and look for the mailbox standing outside it. A prompt reading “The mailbox has a new letter waiting…” confirms you are at the right spot.

The mailbox sits outside the glass cafe, and the envelope lands in your hotbar once you collect it. Image: Find The Games World

Interact with the mailbox and pick “Open letter”. Your character notes that the envelope has arrived, and the letter itself opens as a readable page with “Click anywhere to close” underneath.

The A strange letter dialog open on screen with a close prompt below it — The “A strange letter” dialog you get from the mailbox before you leave the main map. Image: Find The Games World

Close the letter and check that the envelope is sitting in your hotbar. Keep it equipped or at least in your inventory for the rest of the run.

Go to the rocket launch pad, the one marked with a Brazil flag, and board it. The rocket runs a countdown from “Launch in 5!” down to “Launch in 1!” before it lifts off, so you have a short window to get aboard.

Once you land on the moon, walk across the surface with the envelope still on you. There is no marker to chase here. Movement is what makes the encounter fire.

Walking the moon surface is the trigger step, not a specific landmark. Image: Find The Games World

Keep the envelope selected in the bottom hotbar as you move. If it is not on you, nothing will spawn overhead no matter how long you circle the surface.

The envelope highlighted in the hotbar on the lunar surface, with the collection counter visible up top. Image: Find The Games World

A UFO appears above you and a green tractor beam drops down. Step into the beam and you are pulled inside, with a “A SECRET brainrot has appeared?!” message on screen.

Interior view of the UFO with blue wall panels ahead and the hotbar at the bottom — Inside the UFO after the beam pickup, with the blue panelled interior and an exit prompt available. Image: Find The Games World

Walk up to the alien NPC inside and choose “Give envelope”. The alien speaks in clicks and beeps, then replies with a drawn-out “T…h…a…n…k…s” as the handoff completes.

How to confirm Gub unlocked

The game tells you outright. A “YOU FOUND!” banner fills the screen with Gub named beneath it and tagged as a Secret. Your index counter also ticks up by one, so a before-and-after glance at the number in the corner is a quick second check.

After that, use the “Exit UFO” option to leave. The unlock is already banked at that point, so there is no need to repeat the delivery.

Why the Gub delivery fails to trigger

Only a few things break this chain, and all of them come down to sequence rather than luck.

You launched without taking the letter. The mailbox stop has to come first, otherwise the moon leg does nothing for you.
You stood still on the moon. The UFO shows up while you are moving across the surface, so keep walking rather than waiting on the landing spot.
You skipped the beam. The green tractor beam is the only way inside the UFO, and the alien is the only place the envelope can be handed over.
You missed the rocket window. The countdown is short, so board before it starts rather than sprinting in at “Launch in 1!”.

Note: Gub also exists in Steal a Brainrot as a Secret costing $900M and generating $5M/s, with higher rates on mutated variants. That is a separate game and a separate economy, and none of it affects the Find the Brainrot unlock described here.

Find the Brainrot currently holds 591 characters in its index, and the ones tagged Secret tend to work like this — a small errand hidden behind an item pickup rather than a needle-in-a-haystack search. Once you know the letter sits at the cafe mailbox and the recipient is off-world, Gub takes about a minute of travel from start to finish.