Room · The Temporal Research Centre
Time Atrium
- 5-2
- Present
- Rockbury (the past)

The main hall and its time machine. The code screen and the two handles start the machine, which keeps the Hook Gun player in the present and sends the Goop Gun player to the construction era. Later it sends the Goop Gun player to the main hall in Rockbury, where Alard talks to you from his tower, and the battery bulb goes into its slot by the machine.
Checkpoints
- 5-1 The TRC · open to walk throughPresent: both players
- 5-2 Fully Powered · you start here: both playersPresent: both players
- 5-4 Overgrown · you start here: both playersPresent: Hook Gun player · Rockbury (the past): Goop Gun player
Each era holds whoever the time machine sent there, so who is where changes from checkpoint to checkpoint. The checkpoint menu's numbers: open a checkpoint for its steps in the walkthrough.
Map
Seen from straight above with the ceilings cut away, drawn from the game files. The numbers match the lists below; select one to jump to it. Things you can first reach at a later checkpoint are dimmed.
What's here
Puzzles (1)
- 1
Documents to read (6)
- 2
Grandfather ClockPresentfrom 5-1
- 3
- 4
- 5
Tesla CoilPresentfrom 5-1
- 6
Rudolph GrappenmakerPresentfrom 5-1
- 7
Rooms in The Temporal Research Centre
All areas and rooms · Journey map
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