This facility was built in West Africa under the ruins of the abandoned Umbrella Africa Research Center. It was built secretly to design Albert Wesker's "Uroboros virus". Upon the completion of the virus, all non-essential researchers (all but Wesker and Excella) were executed to prevent information leaks.[1]

Resident Evil 5

After discovering Umbrella's Laboratory and battling fierce Licker betas, Chris and Sheva venture on, in hopes of finding Jill. The first room of the Tricell facility they enter is one that houses a large rotating elevator. Surrounded by Uroboros test subjects in pods, the elevator contained a computer which listed the names of everyone in them. Chris frantically searches for Jill's name, but is interrupted when the team is attacked by the U-8. After defeating the creature, they come upon Jill's pod, which turns out to be empty. Excella Gionne then reveals herself to them when she appears on the computer screen. Dismayed, but still hopeful, Chris and Sheva exit the elevator to find Excella.


Chris surveys the Missile Area.

In the Missile Area, which houses the Uroboros missiles, they encounter an enemy unlike any other they have seen thus far: Base Majini. They wielded powerful firearms and could withstand more damge than other Majini, which made killing them difficult. They also had to traverse a conveyor belt which had on it failed Uroboros test subjects. The never before seen Reapers also appear here. Upon leaving the Missile Area, Chris and Sheva find Excella in an Uroboros Laboratory, who then unleashes Uroboros Mkono on them. When it is defeated, Chris and Sheva continue on.

They encounter more Majini and Reapers in the following area, which leads to an exit behind a security room. With a final trip on another rotating elevator, the pair enter the Monarch Room entrance, which seems to have been in the process of some sort of construction, but had not yet been finished. They fight their way through a group of Licker β's as they try to lower a draw bridge to continue on to the next room. When they enter the Monarch Room (which was technically apart of the Ndipaya Kingdom) they find Excella there. They attempt to question her, but are interrupted by the mastermind of the Uroboros project, Albert Wesker, and the
Uroboros labs

The Uroboros subject in the labs.

brainwashed Jill Valentine. As Excella takes her leave, the four battle. Eventually, Wesker departs, and Chris and Sheva are left to deal with Jill. Once they remove the device from her chest, she tells them to leave her there and pursue Wesker. They do, and by doing so, leave the Tricell Laboratory behind. Jill is rescued by Josh Stone, and they too leave the facility.

Once Wesker and Excella are eliminated, the Tricell African Research Facilty is left abandoned and closed for good.

Known Areas

  • Revolving Elevators
  • Missile Area
  • Uroboros Laboratory
  • Security Room

Further notes

  • To date, the Uroboros Laboratory is one of the few laboratory settings in the series to not feature a self-destruct mechanism, the others being the Umbrella Africa Research Center and the Caucasus Laboratory.
  • The Uroboros Laboratory makes a stage debut in the update of 2017 Mobile Game, Puzzle Fighter.


  1. Report on Implementation of Preventing Information Leaks