Lightfall Part I is the nineteenth episode of Mega Man: Fully Charged. It is set to air on Cartoon Network on October 7, 2018, and marks the first appearance of Sergeant Night in combat.


When Fire Man questions Sgt. Night's leadership, he decides to take matters into his own hands. Mega Man attends the Unity Day Festival, where he begins stroking his own ego. He gets a message from Lord Obsidian, who calls Mega Man a traitor for battling other robots and challenges him to a duel that night. Mega Man takes his offer to fight him, much to Suna's dismay. Principal 100100 speaks with Mega Man and advises him to back out of the fight, but he refuses. Mega Man battles Obsidian without a strategy and is easily defeated, and is left barely alive while Lord Obsidian lets him go. Suna rescues Mega Man and he agrees to come up with a plan with her. It is revealed that Obsidian and Sgt. Night are one and the same.


Community content is available under CC-BY-SA unless otherwise noted.