you can't, without mods.
there is no sasquatch in gta that is a mod or some one made a gta sa mistery mod
you must mod the game how u mod it?
it s a mod
u1
NO
you cant you need a mod
you can find it but you can use a mod or a cheat to get it
you can mod it or look it up on youtube
You can't, its a mod.
You cannot skateboard on gta IV in normal gameplay. There is probably a mod available (via a computer), so you might like to check this out on the modifications section of the gtawikisite.
You can't dumdum its a mod ;)