Star Trek: The Animated Series Season 2 Episode 3

Just after release from the Holodeck rec room, Dr McCoy is standing on the bridge beside the captain. A black strap appears and disappears on his left shoulder.

During the second Romulan attack near the end, the stars are missing from the lower right 2/3 of the view. Only the top left 1/3 has even a sparse population of starfields.

In the overhead shot when Sulu is about to activate a Rec Room program, Nurse Chapel is seen in place of Lt. Uhura.

How could a hot air balloon fly in space and in a straight line. And if a balloon were hit by a Romulan plasma energy torpedo wouldn't it vaporize instead of just popping--what was it made out of? (editor's note: clearly the casual reference to the decoy as a "hot air balloon" is a simplification of a much more complex phenomena. The novelization by Allan Dean Foster sheds some light on this.)