Green key

What it is for

Where the walkthrough uses it

1. 3-2 The Assembly Line· step 2both players

   Get the two keys. The Goop Gun player climbs to the purple-carpet office (a goop stair onto the grey block, then a blob on its pressure plate folds the plank down) and hangs on the monkey bars there. Bar 1 opens the green key's hatch: the Hook Gun player hooks the key from the gallery up the stairs behind the fuse door. Bar 2 opens the green shutter in the hall: the Hook Gun player pulls out the push block, climbs into the channel and hooks the purple key through a low gap.

2. 3-2 The Assembly Line· step 3both players

   Put both keys in the cargo lift's console.

3. 3-8 Instability at 91%· step 1Hook Gun player

   Your door opens with its button or with the green key in its slot. A green key lies near where you start.

Where to find it

No item spot is random: the game files place every item in the same spot in every game. Some items exist several times at once, such as the fuses in the Time Maze. From the game files: the area is loaded at these checkpoints. A door on the way can still be locked at some of them.

1. 

   Green key 1

   Exotic Matter Laboratory, Accelerator Targeting

   Room: Accelerator Targeting

   ✓Found

   How to find it

   In the office with the purple carpet. It lies on one of the desks behind the glass partition.

   Checkpoints where its area is loaded

   • 3-7 Accelerator Targeting · both players
   • 3-8 Instability at 91% · both players

   5 m

   

2. 

   Green key 2

   Exotic Matter Laboratory, assembly line

   Room: Assembly Line

   ✓Found

   How to find it

   In the chamber with the white floor and the seven dark cubes. It lies on the floor among the cubes, near the back wall.

   Checkpoints where its area is loaded

   • 3-2 The Assembly Line · both players

   5 m

   

Achievements

Onwards and Upwards

Activated the Cargo Elevator

How it unlocks (spoiler)

Both of you stand on the cargo elevator (3-2 The Assembly Line), then pull its chain all the way.

Items: FusePurple key

Walkthrough 3-2: The Assembly Line

Both players unlock it67.8% of Steam players