i really like the blood physics and how it splatters on the wall on the indoor map, not to sound psychotic
Yeah, it's pretty awesome! If you set a custom background, it always splatters on it. You have to edit "custom.png" in the game folder and then select custom background in the game if you wish to do so. If you edit "customforeground.png" (the floor), make sure you edit it with a program that maintains transparency, otherwise you won't be able to see anything.