killing the cashier is easy just go up to him with the auto shotgun and put in right in front of his fce and the nstart blowing his face off, then youll have minigun ammo
The game should have a health bar, and every time the virus starts attacking a lose a life because the green flash takes away my vision of the screen 3/5
for the headshots, get the chainsaw and hunting rifle, then while attacking with the chainsaw switch to rifel, an your hunting rifle should have 99 ammo