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what to do with ufo key in sell lemons

What to do with the UFO Key in Sell Lemons

In Sell Lemons (Roblox), the UFO Key is not something you “sell”; it’s a secret item used to unlock a permanent bonus tied to the UFO and the Good Samaritan Badge. Once you have it, you use it inside the sewer maze to reach a hidden alien and get boosts that make your lemon stand more profitable long-term.

Quick answer: what the UFO Key actually does

  • The UFO Key opens a special door in the sewer that leads to the UFO / alien area.
  • Finding the alien and completing that section unlocks:
    • A +2% income per investor permanent boost.
* The **Good Samaritan Badge**.
  • These effects stack with your other upgrades and make every future sale more valuable, especially after rebirths.

So the short answer to “what to do with UFO key in sell lemons” is: use it in the sewer to unlock the UFO route and claim the permanent +2% per investor bonus and badge.

How to use the UFO Key step by step

1. Get to the sewer

  • Go to the main lemon stand area and find the manhole (usually near the street or back alley).
  • Drop down into the sewer maze.

2. Solve the lever puzzle to reach the UFO door

The UFO Key is obtained by pulling levers in a specific order inside the sewer. Once you have it:

  • Look for the UFO/alien door that was previously locked.
  • Use the UFO Key on that door to open it.

Exact lever orders can vary slightly by update, but guides typically show:

  • A sequence of Red and Green levers that must be pulled in a specific pattern to unlock the path to the UFO door.
  • After unlocking the UFO door, you may need to pull the Red and Green levers again in a particular order to reach the hidden alien.

Video guides with mini-maps are often the easiest way to follow the exact route if you get stuck.

3. Find the alien and unlock the bonus

  • Inside the UFO area, locate the hidden alien (often in a small room or behind a tunnel).
  • Interact with the alien to:
    • Unlock the +2% per investor permanent boost.
* Claim the **Good Samaritan Badge**.

These bonuses are global and apply to all future sales, not just the current run.

Why you should prioritize the UFO Key

Benefit| Why it matters
---|---
+2% per investor| Multiplies with every investor you gain, becoming huge at high investor counts
Good Samaritan Badge| Often tied to extra perks or progression milestones in the game
Permanent, not one-time| Stays with you even after rebirths, boosting long- term profits
Works with all fruits/evolutions| The bonus applies regardless of what fruit or evolution you’re using

Because the boost scales with investors, it becomes extremely powerful once you have many investors on your stand. In practice, doing the UFO Key route before rebirthing is a common strategy, so you keep the bonus across multiple “lives”.

Common mistakes people make

  • Trying to sell the UFO Key – it’s not a tradeable or sellable item; it’s a key for a puzzle.
  • Ignoring the sewer – many players focus only on the stand and miss the permanent boost entirely.
  • Not refreshing the lever order – some puzzles require you to reset or re-pull levers after opening the UFO door.

TL;DR

  • You don’t sell the UFO Key; you use it in the sewer maze.
  • It unlocks the UFO/alien area , giving:
    • +2% income per investor (permanent)
    • Good Samaritan Badge
  • Do this early and especially before rebirthing to maximize long-term profit.

Information gathered from public forums or data available on the internet and portrayed here.