Mega Man III

Robot Masters:

 
Snake Man
Snake Man returns from Mega Man 3. His weakness is the Spark Shock (SP). When defeated he grants Mega Man the Search Snake (SN) and Rush Coil (RC).
 
Gemini Man
Gemini Man returns from Mega Man 3. His weakness is the Search Snake (SN). When defeated he grants Mega Man the Gemini Laser (GE).
 
Shadow Man
Shadow Man returns from Mega Man 3. His weakness  is the Gemini Laser (GE). When defeated he grants Mega Man the Shadow Blade (SH).
 
Spark Man
Spark Man returns from Mega Man 3. His weakness is the Shadow Blade (SH). When defeated he grants Mega Man the Spark Shock (SP).
 
Giant Suzy
Giant Suzy is the mid-game boss players will face inside Dr. Wily's fortress after defeating the first four robot masters. It's weakness is the Spark Shock (SP). Killing Giant Suzy will allow access to the next four robot masters.
 
Dust Man
Dust Man returns from Mega Man 4. His weakness is the Drill Bomb (DR). When defeated he grants Mega Man the Dust Crusher (DU) and Rush Jet (RJ).
 
Skull Man
Skull Man returns from Mega Man 4. His weakness is the Dust Crusher (DU). When defeated he grants Mega Man the Skull Barrier (SK).
 
Dive Man
Dive Man returns from Mega Man 4. His weaknesses are either the Dust Crusher (DU) or the Skull Barrier (SK). Both are equally effective. When defeated he grants Mega Man the Dive Missile (DI).
 
Drill Man
Drill Man returns from Mega Man 4. His weakness is the Dive Missile (DI). When defeated he grants Mega Man the Drill Bomb (DR).
 
Punk
Punk is the mid-game boss players will face inside Dr. Wily's fortress after defeating the second four robot masters. It's weakness is the standard Mega Buster (P). When defeated it grants Mega Man the Screw Crusher (PU) and allows Mega Man to progress deeper into the final level of the game.
 
Dr. Wily
After facing another Giant Suzy and the other various traps inside Dr. Wily's fortress, players will finally face off with the man himself. During his first phase he is vulnerable to the standard Mega Buster (P). During his second phase he is vulnerable to the Screw Crusher (PU).