Puppets Who Kill (2002)

S1E51 Grumble Bee

After Billy receives his first 'B' on a science exam, Rita hatches a plan to dispatch her Grumble Bee to Earth. She believes that unleashing this creature will help him cope with his disappointment and spark his motivation. As the Grumble Bee arrives, it brings chaos and unexpected lessons about resilience and growth, pushing Billy to confront his feelings about failure and strive for improvement.