Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsThe two required Lottacoins Island codes in Mario & Luigi: Brothership are 5387 for the building gate to the upper floors and 6529 for the fourth-floor jail cell. The optional later side-quest code is 3479.
All Lottacoins Island codes
- Main building gate: 5387 — opens the way to the upper floors.
- Fourth-floor jail cell: 6529 — opens the cell holding the office workers.
- Optional later side quest: 3479 — not required for the island’s main progression.
How to solve the building gate code: 5387
The first four-digit lock is in a side room off the main lobby. It blocks the stairs to the upper floors. Follow the clues in this order:
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- The clue on the lobby table gives the first digit: 5.
- In the communication room, the radio or intercom message gives the second and fourth digits: 3 and 7.
- A paper clue in that room tells you to add the cabinet doors and pen cups. Their total gives the third digit: 8.
Enter 5387 and confirm.
How to solve the fourth-floor cell code: 6529
The second required lock opens the fourth-floor cell where the office workers are being held. Its clues provide the digits in sequence:
- Count the triangles shown in the two security-camera views to get 6.
- The plant clues say the digit is less than 6 and greater than 4, so it is 5.
- On the numbered-pillars walkway, evaluate 6 + 4 − 9 + 1 = 2.
- Read the bottom number shown by the camera clue for the final digit: 9.
Enter 6529 to open the cell. Walkthroughs describe the numbered-pillar area differently; looking for the numbered-pillars walkway avoids relying on a specific floor label.
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Optional side-quest code: 3479
A later optional side quest gives three hints: the four digits add up to 23, the code begins with 3 and increases from left to right, and two digits are less than 5. The resulting code is 3479. This is separate from the two codes needed for main island progression.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Solving the puzzles without a code list
The two main locks can be worked out from the island itself. For the first, inspect the lobby table and the communication room’s radio or intercom and paper clue. For the second, study the security-camera views and monitor, compare the plant hints, and check the numbered-pillar walkway. No special physical tool or consumable is indicated for entering the codes.
Quick Recap
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- Mario & Luigi: Brothership
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