How to unlock Dr. Wily’s castle and every item in Mega Man 2
What you must do to open Dr. Wily’s castle and earn every weapon, item and Energy Tank in Mega Man 2.
Original 1988 Famicom / 1989 NES game. Guides use the English NES cartridge with Normal and Difficult settings. The Game Boy Mega Man II, remakes and later movement abilities are outside this reference.
Dr. Wily’s castle
Defeat all eight Robot Masters to open the castle, or start there with the password A5, B2, B4, C1, C3, C5, D4, D5, E2.
Weapons
Each Robot Master gives his weapon when defeated, so all eight special weapons come from beating the eight bosses.
Items 1, 2 and 3
Beat Heat Man, Air Man and Flash Man. You need these platforms to cross parts of Wily’s castle.
Energy Tanks
Energy Tanks are pick-ups in the stages. You can carry up to four, and the password keeps them.
The final boss
The last alien form can only be damaged by Bubble Lead, so keep that weapon’s energy for the end.
More Mega Man 2 quick answers
Mega Man 2 passwords: skip to Dr. Wily’s castleWhere to find Mega Man 2 items and boss weaknessesClear the castle on Normal first; Difficult changes enemy toughness, not the route.
Picture details
Game artwork belongs to its respective rights holders.