Wily Castle (Mega Man: Dr. Wily's Revenge)

The Wily Castle in Mega Man: Dr. Wily's Revenge is the game's penultimate stage. After defeating the four Robot Masters, Mega Man enters the fortress to find Dr. Wily and fights against its defenses. After defeating the Mega Man Killer Enker, Wily escapes to the Wily Station in outer space and Mega Man follows him.

Enemies

 * Big Eye
 * Bunby Heli
 * Changkey Maker
 * Gabyoall
 * Metall
 * Mole
 * Neo Metall
 * Pipi
 * Sniper Joe
 * Octopus Battery
 * Scworm
 * Four bosses: Bubble Man, Flash Man, Quick Man, and Heat Man
 * Boss: Enker

Trivia

 * Despite the castle map not seen, Mega Man appears to revisit this castle for the first Special Stage in Mega Man 10 to challenge Enker once more.