There is a popluar mod in GTA San Andreas called Misterix Created in 2007.

The Misterix Mod is that contains many popular myths in GTA San Andreas such as Bigfoot Leatherface and Kifflom. 
It is infamous for being one of the first myth mods ever released and many of the creatures featured within have been believed to be real and became myths of their own.

So i took those myth skins and i convert them in Vice City.

This skin mod include:

1- Bigfoot
2- Cave Monster
3- CJ's Mom Ghost
4- Jason Voorhees
5- Kifflom
6- Leatherface
7- Lizardman
8- Mutant
9- Piggsy
10- Ring Girl
11- Sasquatch

Installation:

Pick any skin you like and rename the dff and txd and you know the rest... -_-

Now There is no script mod for those myth skins (You know like the time they spawn and the health etc..) if anyone is interested to make a script file for those skins, knock yourself out!

Credits:

Automan, Zeb89: For the Original Misterix Mod.

Me (QJA): For convert those skins.