Eddie re-enacts the "make my day" line near the end and the parrot says he fired six shots. Eddie fired only five shots, and five again on the parrot.
In the first act Richie hands Eddie a bottle of weapons-grade toilet detergent which he says he bought from an Iraqi, yet later in the same act he confesses to stealing it.
Richie accuses Eddie of teaching the parrot to curse, but Eddie hadn't met the parrot until much earlier in the first act.
Just after Eddie leaves the cell for his interview with Mr Big, Richie looks through the door's peep-hole. For a brief second, you can see the face of a stagehand before he ducks out of sight.