When I would go to run it, I would see the following error:
X Error of failed request: BadAlloc (insufficient resources for operation)
Major opcode of failed request: 159 (GLX)
Minor opcode of failed request: 3 (X_GLXCreateContext)
Serial number of failed request: 26
Current serial number in output stream: 27
Did some research via google, and discovered that my Debian Stable, running tdfx with a voodoo 3 3000 (16Mb RAM) card, needed a library for 3dfx cards: libglide3.
Then did this command:
robert@pip:~$ sudo aptitude install libglide3
...ran bzflag again, to successful results.