Sell Lemons: How to Get the UFO Key and Good Samaritan Badge

The UFO Key sits at the end of a sewer maze in Sell Lemons, and it only appears once you pull a fixed run of colored levers in the right order. Grab it, and you can speak to the Alien hidden behind bars, which hands over the Good Samaritan Badge and doubles the bonus each Alien Investor pays.

Quick answer: Rebirth at least once so you have an Alien Investor, then in the sewer maze pull Blue, pull Red, pull Green, unpull Red, pull Purple, pull Red, unpull Green, unpull Red. The UFO Key then spawns on its pedestal.

Rebirth first or the UFO Key never spawns

Before touching a single lever, make sure you have unlocked at least one Alien Investor. That means rebirthing once, which becomes available at around 77 sextillion in cash. If you complete the whole lever run without an Alien Investor, the key simply will not appear at the end of the corridor, and the effort is wasted.

You reach the maze by running down the main street and dropping through any manhole into the green-lit sewer. All of the levers live inside this maze.

The exact lever order to spawn the UFO Key

Each lever toggles between a pulled and unpulled state, and the light above it changes color when it is on. The sequence mixes pulls and unpulls, so follow it precisely. The stone door that opens after the Red Lever can be ignored.

Order	Lever	Action
1	Blue	Pull
2	Red	Pull
3	Green	Pull
4	Red	Unpull
5	Purple	Pull
6	Red	Pull again
7	Green	Unpull
8	Red	Unpull

Note: Do not leave the game at any point during this run. If you disconnect or quit, every lever resets to its starting state, and you have to begin from the Blue Lever again.

Respawning your character through the Roblox menu is fine and is the fastest way to return to the surface between levers. It sends you back to the street without resetting the levers, so use it freely to move between maze entrances.

Collect the UFO Key from the pedestal

With the eighth action done and the Red Lever unpulled, head back into the maze entrance near the green wall text. Follow the corridor to its end, where the UFO Key floats on a pedestal. Walk into it to pick it up.

If the pedestal is empty, the most common cause is that you never rebirthed, so no Alien Investor exists, and the key cannot show. The other cause is a broken lever order, which forces a full restart.

Reach the Alien and claim the Good Samaritan Badge

The key alone does not open the Alien’s room. After picking it up, you need to reactivate two levers to open the gate, then take a different route through the Green Lever maze.

Respawn to the surface and drop back into the sewer. Go to the Red Lever and pull it so the light turns red.

Move to the Green Lever and pull it as well. Both lights should now be on.

Respawn once more, re-enter the sewer, and head to the Green Lever maze entrance. This time, take the alternate path toward the Alien’s room, which is now open. Follow the hallway, take the first left, and continue down the winding corridor.

On your left you will find the Alien behind bars, wearing a cardboard box on its head and sitting in a small room with a desk and chair. Press E to talk to it.

Speaking to the Alien awards the Good Samaritan Badge and opens the Alien Investors menu. You will know it worked because the bonus each investor gives doubles from 1% to 2% cash. That upgraded payout is the real reward, so the badge pays for itself the moment you claim it.