The Fabulous Faker Boy - S24-E20
Other mistake: When Zhenya says "Boris" while showing Bart the scales, she presses the A key instead of the B key. (00:10:00)
The Fabulous Faker Boy - S24-E20
Continuity mistake: When Marge is talking to Bart, in the shot of Marge, there's a tree in the backyard, in another shot of Marge after the one with Bart and Lisa, the tree is gone.
Answer: Willy referred to an encounter he believed he had with actual aliens, while Wiggum thought he was referring to the arcade game.