In normal Resident Evil programming, doors act as "zone dividers." When you leave a room, the game unloads the enemies you left behind (or saves their HP and position). When you re-enter, they are where you left them.

Because the Magic Zombie Door symbolizes everything fans love about Resident Evil 1.5 . It isn't a polished masterpiece. It is a beautiful ruin. It is the skeleton of a game that was murdered in its infancy.

The leaked 1.5 builds (primarily the "40% build" and the "80% build") are filled with "debug doors." Programmers often used door objects not as actual transitions, but as triggers for testing.