Route support

Sell Lemons Sewer Key

Use this page to track the sewer gate, colored lever puzzle, Sewer Key route, and anything that blocks the path toward later-game areas.

Check 1

Find the sewer entrance

Current guides point players toward a manhole/sewer entrance before they start the lever puzzle.

Check 2

Track colored levers

The public route uses blue, red, green, and purple lever states. Note which levers are pulled or reset.

Check 3

Grab the Sewer Key first

The community wiki separates the Sewer Key route from the UFO Key route, so keep both checklists linked and updated together.

Sewer Key working notes

The community wiki reports that the Sewer Key appears after a lever sequence that starts with blue, red, and green, then resets red and blue before continuing through purple and red. Treat this as a route draft until you verify it in your own gameplay session.

  • Capture the manhole or sewer entrance.
  • Capture each colored lever before and after toggling.
  • Capture the key pickup and the gate it opens.