When Dr. Wily jumps out of the flying saucer, Wily will turn into a green alien. It only has one attack, it shoots at Mega Man. It's best to use the Bubble Lead from Bubble Man, the easiest way to defeat it. After that, the alien turns back into Dr. Wily and the game is finished.
The Bubble Lead makes the boss lose 2 HP during the battle.
The Bubble Lead makes the boss lose only 1 HP during the battle.
- This was the first boss to be introduced after defeating the Wily Machine.