"All your base are belong to us."
Now referenced in Operation: Vietnam
Also:
Space Quest (I forget which one) - "Thanks for playing Space Quest . As usual, you've been a real pant load!"
Bust-a-move - "Yo gangsta! Get ready to gang bang!"
Secret of Monkey Island - "How appropriate. You fight like a cow."
Mario & Luigi DS - "AREA RESTRICTED. ALL NOOB INTRUDERS 2 B HAXORED BY US L33T HAMM3R BROZ.!"
Art of Fighting 2 - "Pai Long Cures Hemorrhoids"
Leisure Suit Larry 6 - ""Slowly, delicately running his soft, pale fingertips over her smooth, sensitive eyelids, Burgundy felt each whorl of Geoffrey's fingerprint burn fire into her loins, felt waves of passion wash over her, felt her moist womanhood nearly explode with..." Oops, you're not Geoffrey. Let's see here... Oh yes, here we are."
Fatal Fury Special - "Oooh you make me so angry ya big silly"
Fatal Fury Special - "Challenge me? Ya hot spunky kid. I hate spunk"
Fatal Fury Special - "Blood is thick, but syrup is thicker. Think about it"