Where to go
The puzzle uses two separate structures on a ledge over the water. A rounded building, long light panel, intercom route, and red-light communication channel identify the paired stations.
Split between the two waterside stations, number the light panel, and use announce-repeat-confirm-press for every current cue.
Find both waterside buildings on the same ledge and put one player in each station. Number the long light panel from a fixed left-to-right viewpoint before starting; if there are sixteen or seventeen positions in your active layout, the visible panel count is authoritative. Agree how the intercom and single red light will mean “ready,” “yes,” or “repeat.” The reader announces one lit position, the operator repeats the number, the reader confirms, and the operator presses exactly that many or that position as shown. Complete the current sequence without guessing; there is no permanent light code.
The puzzle uses two separate structures on a ledge over the water. A rounded building, long light panel, intercom route, and red-light communication channel identify the paired stations.

Locate the rounded structure and its paired building on the same ledge over water.
One player can occupy each required station.

From one fixed viewpoint, count every current position left to right and share the final count.
Both players agree on position 1 and the last position.

Agree which channel means ready, yes, no, and repeat before the first active cue.
A single red flash cannot be misread as an answer.

Reader states only the current light number and waits; do not queue several calls.
Operator can repeat one unambiguous number.

Operator repeats, reader confirms, and operator performs one exact input before reporting success.
The sequence advances once with no accidental double input.

Repeat the protocol until the panel stops and the Purple Blob appears; use new cues after a reset.
Reward release confirms the full sequence.
Use one player for each information or action side. Reader owns the sequence; operator never presses an unconfirmed position.
Keep the two core roles unchanged. Extra players should spot, carry, or record the current sequence without creating a second caller.