Resident Evil 5
Resident Evil 5

Chapter 5: Laboratory

Resident Evil 5 Chapter 5 walkthrough: Laboratory. Face powerful B.O.W.s and uncover Umbrella's secrets.

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Chapter 5: Laboratory

Chapter 5, "Laboratory," plunges Chris and Sheva into the very heart of the Umbrella Corporation's insidious research facilities. This chapter is a pivotal point in the narrative, revealing more about the Uroboros virus and the masterminds behind its creation. Players will face some of the most grotesque and powerful Bio-Organic Weapons (B.O.W.s) yet, requiring precise combat strategies, careful resource management, and keen environmental awareness. Expect intense encounters, complex environmental puzzles, and a significant boss battle that tests all your accumulated skills.

Chapter 5: Laboratory - Resident Evil 5 screenshot
Chapter 5: Laboratory

Key Objectives

  • Navigate the underground laboratory complex.
  • Activate the power to various sections of the facility.
  • Locate and retrieve keycards for locked doors.
  • Survive encounters with new and enhanced B.O.W.s.
  • Confront and defeat the Uroboros Aheri.
  • Uncover crucial plot details about the Uroboros project.

Recommended Loadout & Strategy

Given the nature of the enemies and the boss fight, a balanced loadout is crucial. Prioritize weapons with high stopping power and those effective against multiple targets.

Weapons:

  • Shotgun (M3/J. Breaker): Essential for crowd control against Majini and for staggering larger B.O.W.s. The M3 offers good balance, while the J. Breaker has higher damage.
  • Machine Gun (AK-74/H&K MP5): Useful for sustained fire against faster enemies and for chipping away at boss health. The AK-74 has higher damage, the MP5 better accuracy.
  • Sniper Rifle (S75/Dragunov): Crucial for taking out distant enemies, particularly the Cephalo and Duvalia mutations, and for targeting weak points on larger B.O.W.s.
  • Magnum (S&W M500/L. Hawk): Absolutely vital for the boss fight and for quickly dispatching tougher B.O.W.s. Save your Magnum ammo for critical moments.
  • Grenade Launcher (Flash/Explosive Rounds): Flash rounds are invaluable for stunning Lickers and Majini, allowing for easy melee follow-ups. Explosive rounds are great for groups or direct damage.

Items:

  • First Aid Sprays/Green Herbs: Always carry a few. Healing opportunities can be scarce.
  • Incendiary Grenades: Extremely effective against Uroboros mutations and Lickers.
  • Proximity Mines: Can be strategically placed to thin out enemy groups or damage larger B.O.W.s.
  • Ammo for all equipped weapons: Ensure you have a healthy supply, especially for your Magnum.

General Strategy:

  • Teamwork: Utilize the partner system effectively. Have one player focus on crowd control while the other targets specific threats or provides cover.
  • Resource Management: Ammo and healing items are precious. Only use powerful weapons when necessary.
  • Environmental Awareness: Look for explosive barrels, gas canisters, and other environmental hazards to your advantage.
  • Weak Points: Many B.O.W.s have visible weak points (often orange or glowing). Target these for maximum damage.

Enemy Types Encountered

  • Majini (Various): Standard enemies, often armed with melee weapons or firearms. Be wary of armored variants.
  • Lickers: Fast, blind creatures that rely on sound. Use stealth or flash grenades to stun them for easy kills.
  • Cephalo: Majini infected with a parasite that bursts from their head. Target the head quickly to prevent mutation. Sniper rifles are excellent here.
  • Duvalia: Majini infected with a parasite that replaces their upper body with a large, armored mouth. Target the exposed soft tissue inside the mouth when it opens.
  • Adjule (Dogs): Fast and aggressive. Shotguns or machine guns are effective.
  • Uroboros Aheri (Boss): A massive Uroboros mutation. Requires specific tactics to defeat.

Detailed Walkthrough: Chapter 5

5-1: Underground Garden

The chapter begins in a lush, overgrown underground garden. Your primary goal is to activate the power to proceed deeper into the facility.

  1. Initial Area & Power Switch:
    • Follow the path until you reach a large open area. You'll encounter several Majini.
    • Locate the first power switch on a wall. Activating it will open a gate.
    • Collectible: Check the corners and small alcoves for ammo and treasures.
  2. Licker Encounter:
    • Proceed through the newly opened gate. You'll enter a darker section with several Lickers.
    • Strategy: Lickers are blind but have acute hearing. Walk slowly to avoid detection. If detected, use flash grenades to stun them, then follow up with melee attacks or shotgun blasts. Incendiary grenades are also highly effective.
    • Work your way through the Licker-infested corridors, collecting items as you go.
  3. Second Power Switch & Keycard:
    • You'll eventually reach a room with another power switch. Activating it will power up a nearby elevator.
    • Before taking the elevator, look for a small office or control room nearby. Inside, you'll find a Laboratory Keycard A.
    • Use the elevator to descend to the next level.

5-2: Experimental Facility

This section is characterized by sterile, metallic corridors and more advanced B.O.W.s.

  1. Security Doors & Keycard B:
    • Upon exiting the elevator, you'll encounter a series of locked security doors requiring keycards.
    • Fight through several Majini and Cephalo mutations. Remember to target the Cephalo's head quickly.
    • Navigate the corridors, using your Laboratory Keycard A to open the first set of doors.
    • You'll eventually reach a room with a central console. After clearing the enemies, search the area thoroughly to find Laboratory Keycard B.
  2. Duvalia Encounter:
    • As you proceed, you'll encounter Duvalia. These are tough enemies.
    • Strategy: Wait for the Duvalia to open its armored mouth, then shoot the exposed soft tissue inside. Shotguns and Magnum rounds are very effective. Keep your distance and use cover.
  3. Power Core & Final Keycard:
    • Use Laboratory Keycard B to access the next section. You'll enter a large room with a central power core.
    • More Majini and Duvalia will attack. Clear the room.
    • Locate the final power switch or console to fully activate the facility. This will also grant you Laboratory Keycard C.
    • Prepare for a boss fight as you proceed through the final door.

5-3: Uroboros Research Facility & Boss Battle

This is the climax of the chapter, culminating in a confrontation with a powerful Uroboros mutation.

  1. Approach to the Boss Arena:
    • Use Laboratory Keycard C to open the final door. You'll enter a large, circular chamber.
    • Collect any last-minute ammo or healing items in the surrounding area.
    • Common Pitfall: Don't rush into the center. Take a moment to survey the arena and identify environmental hazards.
  2. Boss Fight: Uroboros Aheri
    • As you enter the central platform, Uroboros Aheri will emerge. This creature is highly resistant to conventional gunfire.
    • Weakness: Uroboros Aheri is extremely vulnerable to fire.
    • Strategy:
      • Incinerator: The primary method to defeat Uroboros Aheri is to lure it into the central incinerator. There are controls on the perimeter of the arena that activate the incinerator.
      • Luring: One player should act as bait, drawing the Uroboros Aheri towards the incinerator while the other player activates the controls.
      • Damage Phase: Once the Uroboros Aheri is inside the incinerator, activate it. This will deal massive damage and expose its orange core.
      • Targeting the Core: While the core is exposed, unleash your most powerful weapons (Magnum, Sniper Rifle, Shotgun) into it.
      • Repeat: You will need to repeat this process several times.
      • Alternative Damage: If you run out of incinerator uses or need to deal damage between cycles, Incendiary Grenades and Explosive Grenades can also expose the core, albeit for less time.
      • Avoidance: The Uroboros Aheri has powerful melee attacks and can extend its tendrils across the arena. Keep moving and use the pillars for cover.
      • Co-op Tip: Communicate clearly. One player focuses on luring and dodging, the other on activating the incinerator and then both focus fire on the core.
  3. Post-Boss & Chapter End:
    • After defeating Uroboros Aheri, the path forward will open.
    • Collect any remaining treasures or items.
    • Proceed to the exit to conclude Chapter 5.

Collectibles & Treasures (Examples)

Throughout Chapter 5, keep an eye out for various treasures that can be sold for cash to upgrade your weapons or purchase new ones.

  • Gold Ring: Often found in small containers or dropped by specific Majini.
  • Diamond (Brilliant): Hidden in more obscure locations or after defeating certain mini-boss type enemies.
  • Emerald (Square): Can be found in drawers, lockers, or as drops.
  • Topaz (Pear): Similar to emeralds, often in destructible objects or enemy drops.

Common Pitfalls & Tips

  • Ammo Conservation: The Uroboros Aheri boss fight can drain your ammo quickly if you don't use the incinerator effectively. Save your Magnum and high-damage rounds for the exposed core.
  • Licker Detection: Moving too fast or firing unsuppressed weapons near Lickers will alert them, leading to difficult engagements.
  • Duvalia Weak Point: Many players struggle with Duvalia. Remember to only shoot when its mouth is open.
  • Partner AI: If playing solo, ensure your partner is equipped with a good weapon and enough healing items. They can be invaluable for drawing enemy fire or providing cover.
  • Explosive Barrels: Utilize the red explosive barrels and gas canisters strategically to clear groups of enemies, especially in the Licker and Duvalia sections.