Duke Nukem 3D (1996) - PC
Now nabbing the third of the four shooters on my list this early might be a reach, or it might not. But Duke was just too big a hoot to let slip elsewhere. You play Duke Nukem, the toughest, rudest, most sexist badass on the planet as we get assaulted by aliens. Duke's motivation for saving the world? "Nobody steals our chicks... and lives!" Duke is the sort of game where you have shootouts in porn shops. Where the L.A.P.D. has been mutated into pig cops with the label L.A.R.D. across their chest. Where Duke fights through a strip club and when you approach any of the strippers on stage and hit use/enter, you extend your hand full of cash and say "Shake it Baby" as she opens her top. Where you go into a bathroom looking for enemies, and can stop in front of a urinal to actually take an, er, break. You stomp on alien's heads, talk major smack, toss bad puns, and run into a variety of pop cultural icons. Lot of fun. The all time embarrassment that was/is the now 12 years of screwing around on a sequel is a tragedy.
For a hilarious selection of the quotes you growl out while kicking *** and chewing bubblegum, check this out
http://www.imdb.com/title/tt0228246/quotes (some naughty words are included).