Urban Yeti!(2002)

Urban Yeti is is a smooth scrolling 2 1/2-D platform adventure, and might very well be the strangest game you've ever played. You can smash your way through 4 twisting city stages, or attempt to avoid detection all together. Either way the Human AI will adapt as you progress - the more contact you have, the more aggressive they'll become. There are even some unique minigames to add to the excitement - Yeti Frisbee, managing the local "Yeti Kingdom Of Eats" restaurant, and catching poultry to offer to your prospective mate. You can even float down a lazy sewer river o' fun on a giant tube! Achieve the ultimate goal and show the world just what kind of Bigfoot you really are.