I've been really interested about this thread and Im gonna make or break some news to you and introduce you to other mysteries
Bigfoot: Unproven but possibly in the game in Flint Country
*NEW* Leatherface: Unproven but has been seen in the game with a chainsaw around were you race your avatar from GTA 3
*NEW* Leatherfaces Base, House w/e: Where you find leatherface opens a new world. Go into the cabins and you can see blood. If you have seen the movie the place is very close to the movie.
Ghost Cars: Real and freaky!
*NEW* TV ghost girl from Cj's House: Has been seen on youtube etc.
*NEW* Ghost graffiti: Can only be seen at midnight and around the graveyard in LS
Zombie Lab: You have been wrong that it's in LS it's in SF called "zombie tech"
Phone Booth:Unproven
Lochness Monster: Close but fake because most videos I have seen are actually edited
*NEW* Ped Suicide Jump: Scan the area near the SF gym and if you can see a person on a building. He's going to jump
Kill all humans: Haven't heard of the static stuff
*NEW* Ghost water: Go to a small lake where you can find a Quadbike. Drive something into it get out and look under the water. There is nothing there besides the landscape of rocks etc.
*NEW AND PROVEN* Big light orb: This is a big mystery to GTA SA fans because this orb whenever you fly close to it. It went away but actually it's a dot to dot of the R* logo with the orb being the star
Well thats all in my head right now and I'll think of some more later.
If your hunting for bigfoot I suggest you do the unlimited health and ammo cheat.To find this go to
www.gamewinners.com
Have some fun with these!