Resident Evil Zero HD Remaster : Part 13 (Ending) (PS4)

Rebecca and Billy eventually catch up with the leech-controlling man who is actually Marcus and the person responsible for the viral outbreak. Ten years ago, he had been assassinated by Wesker and Birkin under the orders of Umbrella co-founder Ozwell E. Spencer who stole his research to become the company's sole president. During his dying moments, Marcus' queen leech entered his body and revitalized it over the course of a decade, thus giving him a chance to take his revenge on Umbrella. Marcus mutates into a gigantic leech monster while the facility's self-destruct mechanism is activated. Just before the explosion, Rebecca and Billy defeat the creature by exposing it to sunlight. They escape to the forest where they see an old mansion used by Umbrella as a research facility. Rebecca assures Billy that her police report will list him as just another casualty of the incident. Billy thanks her and escapes as Rebecca heads towards the mansion to investigate the whereabouts of her fellow Bravo Team members, beginning the events of Resident Evil.