Wily Castle (Mega Man 3)

This is the complete list of all the stages and their enemies in Wily Castle (ワイリー城?) in Mega Man 3, after Mega Man defeats Break Man and learns that Dr. Wily has stolen Gamma for use in his plan to rule the world. At Wily Castle, Mega Man ultimately goes up against Wily.

Stage 1
The entrance to the castle is flooded with water and contains spike-lined floors.

Enemies

 * Hammer Joe
 * Komasaburo
 * Penpen
 * Boss: Kamegoro Maker

Stage 2
This area is a very long gap with spikes lining the walls and ceilings.

Enemies

 * Have "Su" Bee (with Chibees)
 * Wanaan
 * Boss: Yellow Devil MK-II

Stage 3
This is an upwards-climbing level with shifting moving platforms that can sometimes run into spike-lined walls.

Enemies

 * Bikky
 * Hammer Joe
 * Hologran
 * New Shotman
 * Walking Bomb
 * Boss: Holograph Mega Mans

Stage 4
This is the castle basement containing pipeworks, leading to a room that contain eight capsules with eight clones of the first set of robots.

Enemies

 * Junk Golem
 * Rematches with the eight Robot Masters

Stage 5
This is a very short stage containing only a battle against Dr. Wily.

Enemies

 * Boss: Wily Machine No. 3

Stage 6
This is another very short stage containing only power-up items and your final battle against Dr. Wily.

Enemies

 * Boss: Gamma

Other appearances
Although the castle itself had not actually appeared yet in the Mega Man Archie Comics series, it was mentioned in Issue 34, where Break Man tells the other third generation Robot Masters, including the recent recruit Shadow Man, to convene at the castle's building site and finish it up.