The famous "ayuwoki" appears in GTA San Andreas!
There are some steps to follow before finally facing him. First he'll show up at the cemetery at 2 AM, you have to wait another day until 03:33 comes, he'll appear again, you must take a photo to weaken him! After this, go to CJ's House to take another photo of him. Finally, face him in the cemetery, and use a fire extinguisher, that's the only weapon that can defeat him, since it can stop his singing!
If you get close to him, you'll die! At the final showdown, your health will decrease if you stay close to him, so be careful! Check the youtube video to see the mod in action. Description of this mod more detailed in the readme files!