press V to change Visor Settings (color and whether the flashlight is on or not) day/night changes every 10 seconds if the flash light is on, then it will slowely drain battery (so don't use it when it's light) press/hold e to shoot, f to reload.
most art by me, some art based on Halo other art by droidz I never really went anywhere with this game, but feel free to remix and make your own.