(Written from a Production point of view)
Zeiram is a rejected creature design which was a candidate for Resident Evil 2's final boss.
The design was rejected when it was still only a series of concept art pictures. Characteristics of Zeiram and its rival for final boss, "Golgotha", were merged with the William Birkin character as successive forms of its G-evolution.
- Sumner, Christian; Shotten, Brian; Owen, Michael, eds (9 November 2005). Resident Evil Archives: Umbrella's Virus Uncovered. Translated by Zpang America, Inc.. BradyGames. ISBN 0744006554.