While hallucinating, Batman makes a passing reference to Jason Todd, the second Robin. Batman raves "Robin... look out... Joker's got a bomb!", which in the comics is how Jason died. See more

Goofs

When the Scarecrow starts the main pump, he checks his watch, which shows 10 after 4. When he again checks his watch, just as Batman arrives, it shows 20 after 3. This may be due to the hands being drawn in the wrong spots. See more