Episode Two: The Series Has Landed - S1-E2
Trivia: When Amy is trying to get the keys out of the claw machine the games in the background have names like "Gender-Neutral Pac-Person" and "Mortal Kooperation(sic)"
Episode Two: The Series Has Landed - S1-E2
Trivia: The black and white scene Leela and Fry witness on the ride "Destination Moon" (In which the man says to his wife "One of these days, Alice, bang. Zoom. Straight to the moon.") is a scene from the 1950s TV show called "The Honeymooners".
Episode Two: The Series Has Landed - S1-E2
Trivia: The creators were well into the late animation stage when they realized that the original moon lander had left the moon. They then added the plaque in the background that says "Returned by the historical sticklers society".
Answer: You are thinking about episode 20 of series 2 - "Anthology of Interest I". She technically never kills anyone, but in the episode she ask a "What if machine" (one of the Professor's inventions) what would happen if she was more impulsive. The machine then shows the more impulsive Leela killing off the Professor to get the money from his will and thereafter killing Hermes, Bender, Scruffy, Cubert, Nibler, Amy and Zoidberg to cover it up. Finally she does something really impulsive with Fry.
Andreas[DK]