MegaMan NT Warrior (2002)

Season 3: Episode 36

MegaMan has startling dreams where he murders his NetNavi friends, and he becomes nervous when he learns his friends were injured the night before. Though MegaMan's system tests normal, MegaMan begins causing mischief, leading to his eventual arrest. After an emotional separation, Lan realizes that he isn't MegaMan, and the NetNavi unveils himself as Dark MegaMan. The real MegaMan has been captured by Darkloids CosmoMan, LarkMan, BlizzardMan, and CloudMan. Ms. Yuri helps Lan rescue his NetNavi, and ShadowMan even reappears to assist. The Darkloids thus escape.