Also, all the guns can be upgraded and such, and new one's can be bought from an Aussie merchant. If you speak Spanish, you have an advantage as all the villagers shout at you in Spanish before attacking. They say things like "DE TRAS DE TI, IMBECIL" or "TE VOY A MATAR"
(If you have surround sound this is especially helpful.)
It's also as intense as all-get-out. Just when you think you should get a breather, a fifty foot tall "El Gigante" knocks down a door and attacks you. And don't get me started on the screams you'll have with the Regenerators. Those are Grade-A villain design.