Okay so this may be a dead end but its honestly the last thing I've been trying to figure out or find. I had the file backed up forever on my HDD but I've lost it somewhere in the process of moving everything to a new one.
Anyways it was a file called "c.con" and it let you hit (Shift ~) and typed in "run c.con" and hit enter. It would brighten everything up and you were able to lean from left to right with just the touch of the arrow/wsad keys. I'm sure maybe Jim remembers what I'm talking about. I was told how to make a .con file and what to type but I can't for the life of me remember how it was done so I thought maybe I'd ask you guys and see if you remembered or could make one for me? It's a very simple file but I'm not even sure where to start. I absolutely loved it for CO-OP.
Thanks as always!