Biohazard 0: HD Remaster

On May 26, 2015, Capcom announced that a high-definition remastered version of the game was in development, Resident Evil Zero HD Remaster. The success of the high-definition remaster of Resident Evil inspired producer Tsukasa Takenaka to provide the same treatment to that game's prequel. Takenaka recognized that many Resident Evil fans preferred the old style of gameplay pre-Resident Evil 4, and so he reasoned that the HD remasters were to provide that same gameplay experience on modern hardware. The remaster was produced by Tsukasa Takenaka and the team was made up of many members from the original team, including director Koji Oda. Takenaka was glad Oda was on board, as this ensured Oda's original vision of the game would not be tarnished. Resident Evil Zero HD Remaster was released on January 19, 2016. A retail compilation called Resident Evil Origins Collection that includes Resident Evil HD Remaster and Resident Evil Zero HD Remaster was released on January 22, 2016. The game was released for the Nintendo Switch on May 21, 2019, along with Resident Evil and Resident Evil 4.
For the remaster, Capcom used the original 2002 models and textures from their archives. To Takenaka's surprise, the models and textures were actually designed in a very high quality and then downscaled for the original release. This meant that some assets had to be redone, as items that were intentionally blurry or illegible in the original were now much more clear and did not make sense in context, such as posters or signs in the environment. The models and textures were re-touched, and then the backgrounds were re-captured. Some backgrounds in the original also featured video effects such as fire. In the remaster, these videos were transitioned into 3D effects. Additional modes were added as well, including an easy mode and Wesker mode. In Wesker mode, the player controls Albert Wesker instead of Billy, and can move quickly and use special attacks. Other improvements include an upgrade to 5.1 surround sound, video options for both the original 4:3 ratio or a new 16:9 option, as well as more control styles including a modern non-tank-like control scheme. Overall, Takenaka felt that putting together the remaster for Resident Evil Zero was more difficult than that of Resident Evil, largely due to the companion function.