Mega Man 4

Overview
Many thought Dr. Wily was dead after he was crushed in the last game. When they thought their troubles were over, A scientist named Dr. Cossack claimed that Mega Man, and Dr. Light are creating better robot than him, and wants to put Them out of business. He sends 8 robots to destroy Mega Man.

Later, Mega Man realizes Dr. Wily is still alive, and has held Dr. Cossacks daughter Kalinka hostage. Dr. Crossack was forced to destroy Mega Man. Proto Man frees Kalinka, and Mega Man enters Dr. Wily's castle to defeat Dr. Wily (For the Fourth time!)

Robot Masters

 * Toad Man
 * Bright Man
 * Pharaoh Man
 * Ring Man
 * Dust Man
 * Skull Man
 * Dive Man
 * Drill Man