At the start of 1993, id put out a press release, touting Hall's story about fighting off demons while "knee-deep in the dead". The press release proclaimed the new game features that John Carmack had created, as well as other features, including multiplayer gaming features, that had not yet even been designed. Early versions of the game were built to match the "Doom Bible"; a "pre-alpha" version of the first level includes Hall's introductory base scene. Initial versions of the game also retain "arcade" elements present in "Wolfenstein 3D", like score points and score items, but those were removed early in development as they were out of tone. Other elements, such as a complex user interface, an inventory system, a secondary shield protection, and lives were modified and slowly removed over the course of development.