During the climactic battle at about 2:44, one bad guy on a balcony is shot and falls off while another henchman on the adjacent balcony is just standing with gun in hand doing nothing, as if oblivious to the hail of bullets flying around him. He was apparently a stunt guy just waiting for his cue that wasn't meant to be in the frame.
Amitabh says lines previously said by characters in the film when he wasn't present.
like he says the line Dekho Socho Yeh Ladka Chingaari to Deepak Shirke when he is about to kill him, Deepak had said the line when they were discussing to take Amitabh in his gang when he was A Kid and he wasn't there, Also Danny tells Sharat Saxena that do work in one hand, other hand shouldn't know when Amitabh wasn't present however Amitabh says it to him when he reveals himself.
Despite Mithun escaping the hospital, he is able to fight with so many people in the end.
Sharat Saxena himself opens the door of the helicopter and looks down before being thrown out by Bob Christo.