Go to your Barrage directory and RIGHT click on the sound.bat file. Then when the menu pops up click EDIT. Here is what mine said initially...

rem set GV_ENV_MIPMAP_DITHER=1

set GV_ENV_SGL_VERTEX_POOLING=1

set GV_ENV_TRAP_FP=0

cd src

fly -p -snd -3dfx 111

cd ..

now it says...

cd src

fly -p -snd -vcrp -3dfx 111

I uncovered some variables (switches) that unlock many cool things. I found that it's best to enter the codes between the -snd and the -3dfx switches.

The best one is the first one...

-vcrp

(a vcr mode WITH NO TIME LIMIT!!!, and you are also INDESTRUCTIBLE, and you can rewind, edit cut/paste, and watch your battle) I imagine this is how they made the demo for the game when it's running and says "press any key to begin".

-god - no damage

-wide - wide angle view

-cinema - cinemascope, reduced screen height for a "theatre" like feel

-center or -left or -right -- for a three small windows view of the game

-ross - 3 screens, identical views

-mmx or -intel or -animal or -jesler - change the "in demo" video on the blimp and billboards to various "mini" commercials (I don't think the videos are included in the demo though)

-scr1/4 or -scr1/16 - change the size of the entire viewing window to 1/4 or 1/16 of your viewing monitor

-? for help listing