These unskilled Asian workers pose little threat from long range, but fear them at short distances. They carry a wooden crate filled with TNT, and will make kamikaze runs at you when you get close enough.
Not content with attacking you once, some Coolies will spawn a spectral ghost after their great sacrifice. These apparitions will float around, phasing in and out of existence, heaving nasty gobs of bloody goo at you.
Coolies wear brown withered clothes, chain bracelets on their wrists and ankles, and conical rice hats. They walk barefoot, have undead-like green skin and glowing white eyes. They always carry a box full of TNT. When in sight, one of the TNT sticks' fuse starts to burn.
Coolie Ghosts are skeletal in appearance, without a lower body half, the upper half wrapped in randomly scattered layers of thin red ectoplasm, also having glowing bright red eyes, a thin Asian black ponytail, and they wear chain bracelets on their wrists.
Normal Coolies are best to take out from afar. You can use their explosives to destroy groups. Whenever applicable, use the katana to cut up a dead Coolie's body to prevent a Coolie Ghost from appearing.
When the Ghost is spawned, wait until it phases into existence and shoot him from afar or use the Katana for a quick execution, always ready to evade its nasty red projectiles.