Resident Evil 2 (1998)
Resident Evil 2 (1998)

Laboratory Puzzles

Solve the Raccoon City Underground Laboratory puzzles in Resident Evil 2. This guide details the crucial MO Disk puzzle in the Main Lab.

·Multi-source verified (63/63)

Laboratory Puzzles

Welcome to the Raccoon City Underground Laboratory, a maze of bio-engineered horrors and intricate puzzles. This section will guide you through the key challenges to ensure your survival and progress.

MO Disk Puzzle (Main Lab)

Upon reaching the Main Laboratory, you'll encounter a large console requiring a MO Disk. This is a crucial step to access further areas.

  • Item Needed: MO Disk
  • Location of MO Disk: The MO Disk is found in the P4 Laboratory, specifically on a desk in the back room. You'll need to navigate through the Research Lab and past several Lickers to reach it.
  • Strategy:
    1. Once you have the MO Disk, return to the Main Laboratory.
    2. Approach the large console and use the MO Disk.
    3. The console will display a series of numbers. You need to input the correct code to activate the system. The code is usually found on a document within the lab, often the "Lab Card Key Memo" or similar. For most playthroughs, the code is "GUEST" (or 3104 if using the numeric keypad).
    4. After successfully inputting the code, the system will activate, granting you access to the main elevator and other locked sections of the lab.

Power Panel Puzzle (Power Room)

To restore full power to the laboratory and activate critical machinery, you'll need to solve the Power Panel Puzzle located in the Power Room.

  • Location: The Power Room is typically found off the main corridor leading from the Main Lab, often guarded by a few Zombies or Lickers.
  • Strategy:
    1. Examine the large power panel on the wall.
    2. The puzzle involves flipping a series of switches to achieve the correct power distribution. There are usually three switches, and the goal is to light up all the indicators on the panel.
    3. The solution often involves trial and error, but a common sequence is to flip the left switch, then the right switch, then the middle switch. If this doesn't work, try flipping the switches in a different order, paying attention to which lights come on or go off.
    4. Once all indicators are lit, the power will be restored, allowing you to use the main elevator and other electronic devices.

Detonator Puzzle (P4 Laboratory)

to deal with a particularly stubborn obstacle, you'll need to assemble and activate a detonator. This puzzle is character-specific in some scenarios.

  • Items Needed:
    • Detonator Capsule: Found in the P4 Laboratory, usually on a shelf or table.
    • Detonator Battery: Located in the Power Room, often near the power panel or on a workbench.
  • Strategy:
    1. Collect both the Detonator Capsule and the Detonator Battery.
    2. Combine these two items in your inventory to create the Detonator.
    3. Proceed to the location where the detonator is required (e.g., a damaged wall or a specific door).
    4. Use the Detonator on the designated spot. This will trigger a short cutscene and clear the path forward.