This mod adds a mystical creature - half human and half pig. It is referred to as Piggsy. You can find it on Mount Chiliad. There was no such working mod on the site until now.
Installation: files: Wmyva2.dff replace wmyva2.txd with GTA3.img
File: Piggsy.cs add to the CLEO folder.
Version for smartphones, you can download here (link).