Continuity mistake: When Fry and Leela are standing in the corridor with the portraits of the past Emperors, there are numerous errors. Including the picture of Fry vanishing, as well as blank frames appearing and figures facing the wrong direction.
Continuity mistake: When Bender is in Hermes' office and Hermes says "It has come to my attention this company has been paying you to do nothing but loaf about on the couch", Bender has his arms on the table. When it cuts he has his arms crossed.
As the power builds up in Bender, his left eye pops out, making him a cyclops, subsequently being eaten by the Cyclops eater. After the monster dies, Bender comes out, and has two eyes in the long shot, but puts his left eye back in the close up.