first appeared in first person shooter
s in Doom
as the BFG9000
. But in the Doom Bible
it is said the BFG was originally going to be named the BFG 2704
. This weapon actually appeared in one of the beta
versions of Doom but it behaved a lot differently to the BFG 9000: rather than launching
a single green plasma ball
it launched a large number of smaller green and orange balls
which created a large deadly cloud
and greatly obscured
your field of view
The BFG was changed before the final release to the familiar green ball. However, this may help to explain some of the odd behaviour of the BFG9000 (see that node for details). The reasoning behind the change is somewhat unclear. The most likely explanation was that computers at the time were unable to cope with the large number of sprites produced. However, John Romero has also claimed, "in fact, we ditched the original green&red bfg balls because they looked like Christmas".
There is a Doom Source Port named MBF which emulates some of the behaviour of the beta versions of Doom and allows you to play using the BFG 2704.