Operation is a dexterity game in which you must extract silly body parts from a hapless patient. If you are sloppy, the patient's pain is indicated by a sudden buzzer.Various editions change the patient and the items to be removed, but the game stays the same in its essence: Shrek -- just like the classic version, but with Shrek. Simpsons -- Remove Homer's Bowler's Thumb, Pot Belly, Foot in Mouth, Rubber Neck, Trick Knee, etc. T-Rex -- excavating bones of a T. Rex Spiderman 3 - healing all of Spiderman's ailments - BoardGameGeek