Continuity mistake: When Baby Secret Bear and Baby Tenderheart jump on the rainbow to leave the cloud boat, you can see their "tummy symbols", which they have not yet received. The symbols disappear as they are sliding, then when they reach the bottom of the rainbow, the symbols are given to them for the first time.
Continuity mistake: When the caring meter is dropping down, after Nobleheart says something like, 'It must be Dark Heart,' the shot shows the star and heart buddies and they have switched colours. The star is pink and the heart is yellow. Then in the next shot when they go to hide behind the two kids, they have suddenly switched back to their original colours.
Continuity mistake: When Dark Heart is first shown pretending to fix the caring meter with a crowbar, he stands near it and hums to himself. In the next shot where he busts the gears apart, several colored star buddies gather around to look over his shoulder - but instead he's now working inside the meter.
Continuity mistake: In Dark Heart's cave, when all of the Care Bears are locked away in cages, one of the star buddies tries to pry open a cage's lock with its right arm. But as soon as three of the trapped Care Bears are released, the star buddy's left arm appears mangled instead.
Continuity mistake: After Dark Heart pleads for the Care Bears to help revive Christy, Noble Heart and True Heart say "We can't." In the following shot, Noble Heart is talking, but True Heart - who is listening in the background - completely switches her color from cream to purple for a moment.