Get the whole party into the red room, cover every player-scaled wall button, start the five-minute lock, and stay until the control-panel piece unlocks.
Go to the red house at about 3590, 2020, in the trees at the base of the mountain beside the beach. Bring the entire party inside before touching the controls. The room creates at least two wall buttons and adds more for a larger group, so put one player on every required button and press them all to lock the door. Check that the black wall display starts near 05:00; that countdown—not another task—is the puzzle. Stay in the room and let the full five minutes expire. When the display reaches 00:00, the control-panel piece unlocks. If the timer never starts, stop waiting, make sure nobody is outside, and activate every button again.
The locked room is at approximately 3590, 2020, down the cliff from Blue Tower. From the turnstile puzzle, head right toward the beach and check the trees at the mountain base for a red house. The large black digital countdown, sofas, table, and wall buttons confirm the correct room.
Go down the cliff toward the beach, then search the trees at the base of the mountain to the right of the turnstile puzzle. Enter the red house with a large black timer inside.
The room contains a black digital display, wall buttons, green seating, and a small table.
Wait until every connected player who is solving the puzzle is inside. Keep the doorway clear and do not begin with someone still descending the cliff.
Nobody is outside, and all required wall controls can be covered without a player running between them.
Locate all active square buttons. A two-player party gets at least two; larger parties can receive more. Assign one person to each visible required button.
Every required button has a player ready, and no active control is left uncovered.
Use a short 3-2-1 call and press the assigned buttons. Watch for the controls to light and the door to lock; do not count waiting time until the black display begins moving.
The large display shows roughly 04:59 and counts downward, proving the five-minute lock started.
Release the controls once the countdown is active, then remain in the room. Sit, talk, or watch the display; there is no second code, object hunt, or button sequence to complete.
The display continues below its starting value instead of resetting, and the party remains together inside.
Do not restart the controls near the end. Let the display reach 00:00, then confirm that the door and the Blue Tower control-panel piece unlock before leaving.
The display reads 00:00 and the control-panel piece is available, completing this train-unlock puzzle.
Bring both players inside, assign one button each, and start on a shared countdown. Once the timer is moving, both can leave the buttons and wait.
The room can add buttons for the larger party. Count controls only after everyone arrives, give each active button a dedicated player, and keep extras inside until completion.