At 2:35 in the episode, when Bizarro looks at his reflection in the lake, the logo on his suit isn't mirrored, although it should be. This may be a reference to the fact that Bizarro's suit logo in the comics is a mirror image of Superman, as is Bizarro himself, and the reflection of Bizarro's suit would be a perfect copy of Superman's when viewed through some kind of mirror (in this case a lake).