: The episode hints at the "black gear" or Dark Spore within Ken, suggesting his turn to evil was a manifestation of suppressed grief over his brother Osamu's death.
: In both the Japanese original and the English dub, the voice acting during Wormmon’s final moments is frequently cited as some of the best in the franchise. Community Perspectives Digimon Adventure 02 Episode 21
“The first chapter of the Digimon Adventure 02 story ends here with the defeat of Ken and the self-realization of the evils he has produced. But his journey to become totally good once more is far from over...” WordPress.com · 8 years ago The Crest of Kindness (Digimon Adventure 02 Episode 21) : The episode hints at the "black gear"