Batman's right bat ear plug goes missing between shots.
Cat woman pulls the chain to begin the flow of sand from the container as Robin lies face down on the plank above the tiger pit. At this point, his cape neatly lies flat and fully extends from his shoulders to his thighs thus completely covering his rear end. When the sand pours down to the 50 mark, Robin's cape is crumbled and only extends to his waste, now revealing his briefs. However, just when the sand reaches the zero mark to completely empty from the container, Robin's cape once more neatly lies flat over him covering his rear end and fully extending to his thighs.
After being rendered unconscious by Catwoman, Robin is next seen face down on a plank above a pit containing two tigers. Catwomans henchmen secure Robin to the plank with two straps but then when he's moved into position above the pit the straps have disappeared.
Batman's utility belt is said to emit a noise level of 20,000 decibels. At sea level, the maximum possible sound level in air is 191 decibels.
As Catwoman flees from the Caped Crusaders in the cavern, on of the stalactites wobbles as though from vibrations.
When he is fighting the tiger at the beginning of the episode, the stunt performer playing Batman clearly has a grey mustache.