While the Dynamic Duo are inside Catwoman's hot foot chamber, she mocks them by dropping an egg through a small trap door in the ceiling, to watch it fry on the hot grid at their feet. Although Catwoman's costume includes long-sleeved gloves, the hand that drops the egg through the ceiling is wearing a short cat glove, with a bare wrist.
Batman claims that his rocket is powerful enough to raise a 5000 lb car 500 miles into the air. The atmosphere is only 60 miles so that would be quite a trick.