MONOCHROME Roblox Four-Key Objective Checklist

Quick answer: use this page as a four-key objective progress checklist. Search basement drawers and dressers, return found keys to the elevator lobby panel, and use the completed lock indicators to tell whether you still need another basement search loop.

Need the four-digit number? Use the code page for the separate keypad clue instead of treating this checklist as a second code answer.

Four-key objective checklist

1. Open the boarded DO NOT ENTER doorway and go downstairs.
2. Clear one basement section at a time instead of running randomly.
3. Open every dresser and drawer; keys are found through furniture searches.
4. Remember nearby closets so you have a hiding point when the monster approaches.
5. Return found keys to the four-lock panel beside the elevator.
6. Confirm all four lock indicators are complete before switching attention to the keypad.
7. If the key panel is complete but the elevator still will not open, move to the separate code objective.

Do not assign invented “Key 1” through “Key 4” rooms. Public evidence supports searchable furniture, but it does not establish stable named locations for each pickup.

Search without losing your place

The basement uses similar corridors and rooms, so the useful map landmarks are stairs, junctions, closets, and furniture clusters—not key numbers. Enter a room, check every drawer, decide on a consistent open/closed marker for searched furniture, then move to the next connected area. If the monster is near, stop interacting and use the closest closet.

Returning each key immediately can reduce the risk of losing progress, but that is a safety strategy rather than a physical map connection. The route map therefore separates the maze layout from the recommended search loop.

Separate code objective

Do not rely on a number copied from a screenshot or an older guide. The keypad uses the visible four-digit clue from your run, and two reviewed walkthroughs show different values, so this page only tracks key progress.

Need the four-digit number? Open the code page. If you are lost, use the route map or full walkthrough. If the prompt does not respond, use the controls guide.

When the last key seems missing

Do not spend another full lap checking empty corridor walls. Return to the last junction you can identify, then inspect every furniture room connected to that section. Open upper and lower drawers separately and look for an interaction prompt before deciding a dresser is empty. A familiar room may still contain a drawer you skipped on the first pass.

If you are carrying a key and the monster repeatedly interrupts the search, return through the marked stairs and insert that key before exploring a new branch. This creates a reliable progress check at the lobby panel. When fewer than four indicators are complete, the problem is still in the basement search; when all four are complete, move your attention to the keypad clue.

Common failure modes

• The elevator stays closed: verify both the four-key panel and keypad. Completing only one system is not enough.
• A dresser appears inactive: step closer, center the camera on a drawer, and wait for the interaction prompt.
• You keep searching the same room: use closets, stairs, and junction shapes as landmarks and adopt one consistent searched-drawer marker.
• A copied number fails: return to the basement clue and read the four digits generated or displayed for the current run.
• A guide names fixed key rooms: treat those coordinates as unverified unless they match repeat runs in the current build.

Evidence note

Latest official update signal checked: 2026-09-25. The official Roblox listing confirms four keys and one code, but the update timestamp is a recheck signal, not proof of fixed key rooms or unchanged item spawns. The second video shows dresser searches at 00:20 and the 0849 clue at 06:33. Current written walkthrough guidance independently supports drawers, dressers, closets, and the maze clue. Exact item coordinates remain unverified and are intentionally not invented.

FAQ

How many keys are required? Four.

Where are the keys? Search drawers and dressers throughout the basement corridors. Fixed individual key rooms are not confirmed.

What code should I enter? Enter the four digits displayed in your current run. Do not assume 5343 will match.

Should I carry all four keys at once? You can, but banking a found key at the lobby panel can make progress easier to track and reduce the cost of a failed search loop.

Do the key panel and keypad do the same thing? No. They are separate locks, and both must be completed.

Why does this guide avoid exact key coordinates? Available evidence supports the search method but not permanent Key 1–4 locations.